考试试卷A卷答案
2023年重庆中考数学试卷及答案(A卷)

2023年重庆中考数学试卷及答案(A 卷)(全卷共三个大题,满分150分,考试时间120分钟)注意事项:1. 试题的答案书写在答题卡上,不得在试题卷上直接作答2. 作答前认真阅读答题卡上的注意事项;3. 作图(包括作辅助线)请一律用黑色2B 铅笔完成;4. 考试结束,由监考人员将试题卷和答题卡一并收回参考公式:抛物线)的顶点坐标为,对称轴为()20y ax bx c a =++≠2424,b ac b a a ⎛⎫ ⎪⎝-⎭-2b x a =-一、选择题:(本大题10个小题,每小题4分,共40分)在每个小题的下面,都给出了代号为A 、B 、C 、D 的四个答案,其中只有一个是正确的,请将答题卡上题号右侧正确答案所对应的方框涂黑. 1. 8的相反数是( ) A. B. 8C.D.8-1818-【答案】A 【解析】【分析】根据只有符号不同的两个数互为相反数进行解答即可得. 【详解】解:8的相反数是, 8-故选A .【点睛】本题考查了相反数的定义,掌握相反数的定义是解题的关键.2. 四个大小相同的正方体搭成的几何体如图所示,从正面得到的视图是( )A. B. C. D.【答案】D 【解析】【分析】根据从正面看得到的图形是主视图,可得答案.【详解】从正面看第一层是个小正方形,第二层右边个小正方形, 21故选:D .【点睛】考查了简单组合体的三视图,从正面看得到的图形是主视图. 3. 反比例函数的图象一定经过的点是( ) 4y x=-A. B. C. D. ()14,()14--,()22-,()22,【答案】C 【解析】【分析】根据题意将各项的坐标代入反比例函数即可解答. 4y x=-【详解】解:将代入反比例函数得到,故项不符合题意; A 、1x =4y x=-14y =-≠A 项将代入反比例函数得到,故项不符合题意; B 、1x =-4y x=-44y =≠-B 项将代入反比例函数得到,故项符合题意; C 、x =‒24y x=-22y ==C 项将代入反比例函数得到,故项不符合题意; D 、2x =4y x=-22y =-≠D 故选.C 【点睛】本题考查了反比例函数图象上点的坐标特征,只要点在函数图象上则其坐标一定满足函数解析式,掌握反比例函数图象上点的坐标特征是解题的关键. 4. 若两个相似三角形周长的比为,则这两个三角形对应边的比是( ) 1:4A. B.C.D.1:21:41:81:16【答案】B 【解析】【分析】根据相似三角形的周长比等于相似三角形的对应边比即可解答. 【详解】解:∵两个相似三角形周长的比为, 1:4∴相似三角形的对应边比为, 1:4故选.B 【点睛】本题考查了相似三角形的周长比等于相似三角形的对应边比,掌握相似三角形的性质是解题的关键.5. 如图,,若,则的度数为( ),⊥∥AB CD AD AC 155∠=︒2∠A. B. C. D.35︒45︒50︒55︒【答案】A 【解析】【分析】根据两直线平行,同旁内角互补可得的度数,根据垂直的定义可得CAB ∠,然后根据即可得出答案.90CAD ∠=︒2CAB CAD Ð=Ð-Ð【详解】解:∵,, AB CD ∥155∠=︒∴, 18055125CAB Ð=°-°=°∵, AD AC ⊥∴,90CAD ∠=︒∴, 21259035CAB CAD Ð=Ð-Ð=°-°=°故选:A .【点睛】本题考查了平行线的性质以及垂线的定义,熟知两直线平行同旁内角互补是解本题的关键. 6. 估计的值应在( )()2810+A. 7和8之间 B. 8和9之间 C .9和10之间D. 10和11之间【答案】B 【解析】【分析】先计算二次根式的混合运算,再估算结果的大小即可判断. 【详解】解:()2810+ 1620=+425=+∵,25 2.5<<∴, 4255<<∴, 84259<+<故选:B .【点睛】此题考查了二次根式的混合运算,无理数的估算,正确掌握二次根式的混合运算法则是解题的关键.7. 用长度相同的木棍按如图所示的规律拼图案,其中第①个图案用了9根木棍,第②个图案用了14根木棍,第③个图案用了19根木棍,第④个图案用了24根木棍,……,按此规律排列下去,则第⑧个图案用的木棍根数是( )A. 39B. 44C. 49D. 54【答案】B 【解析】【分析】根据各图形中木棍的根数发现计算的规律,由此即可得到答案. 【详解】解:第①个图案用了根木棍, 459+=第②个图案用了根木棍, 45214+⨯=第③个图案用了根木棍, 45319+⨯=第④个图案用了根木棍, 45424+⨯=……,第⑧个图案用的木棍根数是根, 45844+⨯=故选:B .【点睛】此题考查了图形类规律的探究,正确理解图形中木棍根数的变化规律由此得到计算的规律是解题的关键.8. 如图,是的切线,为切点,连接.若,,AC O :B OA OC ,30A ∠=︒23AB =,则的长度是( )3BC =OCA. B. C. D.323136【答案】C 【解析】【分析】根据切线的性质及正切的定义得到,再根据勾股定理得到. 2OB =13OC =【详解】解:连接,OB ∵是的切线,为切点, AC O :B ∴,OB AC ⊥∵,,30A ∠=︒23AB =∴在中,, Rt OAB :3tan 2323OB AB A =⋅∠=⨯=∵,3BC =∴在,,Rt OBC :中2213OC OB BC =+=故选.C【点睛】本题考查了切线的性质,锐角三角函数,勾股定理,掌握切线的性质是解题的关键.9. 如图,在正方形中,点,分别在,上,连接,,,ABCD E F BC CD AE AF EF .若,则一定等于( )45EAF ∠=︒BAE α∠=FEC ∠A. B. C.D.2α902α︒-45α︒-90α︒-【答案】A 【解析】【分析】利用三角形逆时针旋转后,再证明三角形全等,最后根据性质和三角形内角90︒和定理即可求解.【详解】将绕点逆时针旋转至,ADF :A 90︒ABH :∵四边形是正方形,ABCD ∴,,AB AD =90B D BAD C ∠=∠=∠=∠=︒由旋转性质可知:,,, DAF BAH ∠=∠90D ABH ∠=∠=︒AF AH =∴, 180AHB ABC ∠+∠=︒∴点三点共线,H B C ,,∵,,, BAE α∠=45EAF ∠=︒90BAD HAF ∠=∠=︒∴,, 45DAF BAH α∠=∠=︒-45EAF EAH ∠=∠=︒∵, 90AHB BAH ∠+∠=︒∴, 45AHB α∠=︒+在和中AEF :AEH :, AF AH FAE HAE AE AE =⎧⎪∠=∠⎨⎪=⎩∴, ()AFE AHE SAS ::≌∴,45AHE AFE α∠=∠=︒+∴, 45AHE AFD AFE α∠=∠=∠=︒+∴, 902DFE AFD AFE α∠=∠+∠=︒+∵, 90DFE FEC C FEC ∠=∠+∠=∠+︒∴, 2FEC α∠=故选:.A 【点睛】此题考查了正方形的性质,全等三角形的判定和性质,旋转的性质,解题的关键是能正确作出旋转,再证明三角形全等,熟练利用性质求出角度.10. 在多项式(其中)中,对相邻的两个字母间任意x y z m n ----x y z m n >>>>添加绝对值符号,添加绝对值符号后仍只有减法运算,然后进行去绝对值运算,称此为“绝对操作”.例如:,x y z m n x y z m n ----=--+-,…….x y z m n x y z m n ----=---+下列说法:①存在“绝对操作”,使其运算结果与原多项式相等; ②不存在“绝对操作”,使其运算结果与原多项式之和为; 0③所有的“绝对操作”共有种不同运算结果. 7其中正确的个数是( ) A. B.C.D.0123【答案】C 【解析】【分析】根据“绝对操作”的定义及绝对值的性质对每一项判断即可解答. 【详解】解:∵, x y z m n >>>>∴,x y z m n x y z m n ----=----∴存在“绝对操作”,使其运算结果与原多项式相等, 故①正确;根据绝对操作的定义可知:在多项式(其中)中,经x y z m n ----x y z m n >>>>过绝对操作后,的符号都有可能改变,但是的符合不会改变, z n m 、、x y △∴不存在“绝对操作”,使其运算结果与原多项式之和为, 0故②正确;∵在多项式(其中)中,经过“绝对操作”可能产生x y z m n ----x y z m n >>>>的结果如下:∴,x y z m n x y z m n ----=----,x y z m n x y z m n ----=-+--, x y z m n x y z m n x y z m n ----=----=--+-, x y z m n x y z m n x y z m n ----=----=---+,x y z m n x y z m n ----=-+-+共有种不同运算结果, 5故③错误; 故选C .【点睛】本题考查了新定义“绝对操作”,绝对值的性质,整式的加减运算,掌握绝对值的性质是解题的关键.二、填空题:(本大题8个小题,每小题4分,共32分)请将每小题的答案直接填在答题卡中对应的横线上. 11. 计算_____. 1023-+=【答案】1.5 【解析】【分析】先根据负整数指数幂及零指数幂化简,再根据有理数的加法计算. 【详解】. 1023-+=11=1.52+故答案为1.5.【点睛】本题考查了负整数指数幂及零指数幂的意义,任何不等于0的数的负整数次幂,等于这个数的正整数次幂的倒数,非零数的零次幂等于1.12. 如图,在正五边形ABCDE 中,连接AC ,则∠BAC 的度数为_____.【答案】36° 【解析】【分析】首先利用多边形的内角和公式求得正五边形的内角和,再求得每个内角的度数,利用等腰三角形的性质可得∠BAC 的度数.【详解】正五边形内角和:(5﹣2)×180°=3×180°=540°∴,5401085B ︒︒∠==∴ .180B 1801083622BAC ︒︒︒︒-∠-∠===故答案为36°.【点睛】本题主要考查了正多边形的内角和,熟记多边形的内角和公式:(n-2)×180°是解答此题的关键.13. 一个口袋中有1个红色球,有1个白色球,有1个蓝色球,这些球除颜色外都相同.从中随机摸出一个球,记下颜色后放回,摇匀后再从中随机摸出一个球,则两次都摸到红球的概率是___________ . 【答案】19【解析】【分析】列表得出所有等可能结果,从中找到符合条件的结果数,再根据概率公式求解即可.【详解】解:根据题意列表如下: 红球白球蓝球红球 (红球,红球) (白球,红球) (蓝球,红球) 白球 (红球,白球) (白球,白球) (蓝球,白球) 蓝球(红球,蓝球)(白球,蓝球)(蓝球,蓝球)由表知,共有9种等可能结果,其中两次都摸到红球的有1种结果,所以两次摸到球的颜色相同的概率为, 19故答案为:. 19【点睛】本题考查了列表法或树状图法求概率.用到的知识点为:概率=所求情况数与总情况数之比.14. 某新建工业园区今年六月份提供就业岗位个,并按计划逐月增长,预计八月份将1501提供岗位个.设七、八两个月提供就业岗位数量的月平均增长率为,根据题意,可1815x 列方程为___________. 【答案】 ()2150111815x +=【解析】【分析】设七、八两个月提供就业岗位数量的月平均增长率为,根据题意列出一元二次x 方程,即可求解.【详解】解:设七、八两个月提供就业岗位数量的月平均增长率为,根据题意得,x ,()2150111815x +=故答案为:.()2150111815x +=【点睛】本题考查了一元二次方程的应用,增长率问题,根据题意列出方程是解题的关键.15. 如图,在中,,,点D 为上一点,连接Rt ABC △90BAC ∠= AB AC =BC AD .过点B 作于点E ,过点C 作交的延长线于点F .若,BE AD ⊥CF AD ⊥AD 4BE =,则的长度为___________.1CF =EF【答案】3 【解析】【分析】证明,得到,即可得解. AFC BEA ≌△△,BE AF CF AE ==【详解】解: ∵, 90BAC ∠=︒∴, 90EAB EAC ∠+∠=︒∵,, BE AD ⊥CF AD ⊥∴,90AEB AFC ∠=∠=︒∴, 90ACF EAC ∠+∠=︒∴, ACF BAE ∠=∠在和中:AFC △BEA △, AEB CFA ACF BAE AB AC ∠=∠⎧⎪∠=∠⎨⎪=⎩∴, ()AAS AFC BEA ≌△△∴, 4,1AF BE AE CF ====∴, 413EF AF AE =-=-=故答案为:3.【点睛】本题考查全等三角形的判定和性质.利用同角的余角相等和等腰三角形的两腰相等证明三角形全等是解题的关键.16. 如图,是矩形的外接圆,若,则图中阴影部分的面积为O :ABCD 4,3AB AD ==___________.(结果保留)π【答案】25124π-【解析】【分析】根据直径所对的圆周角是直角及勾股定理得到,再根据圆的面积及矩形5BD =的性质即可解答. 【详解】解:连接, BD ∵四边形是矩形, ABCD ∴是的直径, BD O :∵, 4,3AB AD ==∴,225BD AB AD =+=∴的半径为, O :52∴的面积为,矩形的面积为, O :254π3412⨯=∴阴影部分的面积为; 25124π-故答案为; 25124π- 【点睛】本题考查了矩形的性质,圆的面积,矩形的面积,勾股定理,掌握矩形的性质是解题的关键.17. 若关于x 的一元一次不等式组,至少有2个整数解,且关于y 的分式方程+34222x x a ⎧≤⎪⎨⎪-≥⎩有非负整数解,则所有满足条件的整数a 的值之和是___________. 14222a y y-+=--【答案】4 【解析】【分析】先解不等式组,确定a 的取值范围,再把分式方程去分母转化为整式方6a ≤程,解得,由分式方程有正整数解,确定出a 的值,相加即可得到答案. 12a y -=【详解】解:+34222x x a ⎧≤⎪⎨⎪-≥⎩①②解不等式①得:, 5x ≤解不等式②得:, 1+2a x ≥∴不等式的解集为, 1+52ax ≤≤∵不等式组至少有2个整数解, ∴, 1+42a≤解得:; 6a ≤∵关于y 的分式方程有非负整数解, 14222a y y-+=--∴()1422a y ---=解得:, 12a y -=即且, 102a -≥122a -≠解得:且1a ≥5a ≠∴a 的取值范围是,且 16a ≤≤5a ≠∴a 可以取:1,3, ∴, 134+=故答案为:4.【点睛】本题考查了分式方程的解,以及解一元一次不等式组,熟练掌握运算法则是解题关键.18. 如果一个四位自然数的各数位上的数字互不相等且均不为0,满足abcd ab bc cd -=,那么称这个四位数为“递减数”.例如:四位数4129,∵,∴4129是“递411229-=减数”;又如:四位数5324,∵,∴5324不是“递减数”.若一个“递减53322124-=≠数”为,则这个数为___________;若一个“递减数”的前三个数字组成的三位数a312与后三个数字组成的三位数的和能被9整除,则满足条件的数的最大值是abc bcd ___________.【答案】 ①. ②. 8165 4312【解析】【分析】根据递减数的定义进行求解即可. 【详解】解:∵ 是递减数, a312∴, 1033112a +-=∴, 4a =∴这个数为; 4312故答案为:4312∵一个“递减数”的前三个数字组成的三位数与后三个数字组成的三位数的和能abc bcd 被9整除,∴,101010a b b c c d +--=+∵,1001010010abc bcd a b c b c d +=+++++∴, 110010110100110001abc bcd a b c b b a b a b c +=++++++--=∵,能被整除, ()11010199112a b a b a b +=+++9∴能被9整除,112a b +∵各数位上的数字互不相等且均不为0, ∴, 12345678,,,,,,,87654321a a a a a a a a b b b b b b b b ========⎧⎧⎧⎧⎧⎧⎧⎧⎨⎨⎨⎨⎨⎨⎨⎨========⎩⎩⎩⎩⎩⎩⎩⎩∵最大的递减数, ∴,8,1a b ==∴,即:, 1089110c c d ⨯-⨯-=+1171c d +=∴最大取,此时, c 65d =∴这个最大的递减数为8165. 故答案为:8165.【点睛】本题考查一元一次方程和二元一次方程的应用.理解并掌握递减数的定义,是解题的关键.三、解答题:(本大题8个小题,第19题8分,其余每题各10分,共78分)解答时每小题必须给出必要的演算过程或推理步骤,画出必要的图形(包括辅助线),请将解答过程书写在答题卡中对应的位置上. 19. 计算:(1);()()()211a a a a -++-(2)22.211x x x x x x ⎛⎫÷- ⎪+++⎝⎭【答案】(1) 21a -(2)11x +【解析】【分析】(1)先计算单项式乘多项式,平方差公式,再合并同类项即可; (2)先通分计算括号内,再利用分式的除法法则进行计算. 【小问1详解】解:原式2221a a a =-+-;21a =-【小问2详解】原式 ()222.11x x x x x x ⎛⎫+-=÷ ⎪++⎝⎭()22211x x x x =÷++()22211x x x x +=⋅+. 11x =+【点睛】本题考查整式的混合运算,分式的混合运算.熟练掌握相关运算法则,正确的计算,是解题的关键.20. 学习了平行四边形后,小虹进行了拓展性研究.她发现,如果作平行四边形一条对角线的垂直平分线,那么这个平行四边形的一组对边截垂直平分线所得的线段被垂足平分. 她的解决思路是通过证明对应线段所在的两个三角形全等得出结论.请根据她的思路完成以下作图与填空:用直尺和圆规,作的垂直平分线交于点E ,交于点F ,垂足为点O .(只保留AC DC AB 作图痕迹)已知:如图,四边形是平行四边形,是对角线,垂直平分,垂足为点ABCD AC EF AC O .求证:.OE OF =证明:∵四边形是平行四边形, ABCD ∴.DC AB ∥∴ ① . ECO ∠=∵垂直平分, EF AC ∴ ② .又___________③ . EOC ∠=∴. ()COE AOF ASA ∆≅∆∴.OE OF =小虹再进一步研究发现,过平行四边形对角线中点的直线与平行四边形一组对边相交AC 形成的线段均有此特征.请你依照题意完成下面命题: 过平行四边形对角线中点的直线 ④ .【答案】作图:见解析;;;;被平行四边形一组对边所截,FAO ∠AO CO =FOA ∠截得的线段被对角线中点平分 【解析】【分析】根据线段垂直平分线的画法作图,再推理证明即可并得到结论.【详解】解:如图,即为所求;证明:∵四边形是平行四边形, ABCD ∴. DC AB ∥∴ . ECO ∠=FAO ∠∵垂直平分, EF AC ∴. AO CO =又. EOC ∠=FOA ∠∴. ()COE AOF ASA ≅::∴.OE OF =故答案为:;;;FAO ∠AO CO =FOA ∠由此得到命题:过平行四边形对角线中点的直线被平行四边形一组对边所截,截得的线段被对角线中点平分,故答案为:被平行四边形一组对边所截,截得的线段被对角线中点平分.【点睛】此题考查了平行四边形的性质,作线段的垂直平分线,全等三角形的判定和性质,熟练掌握平行四边形的性质及线段垂直平分线的作图方法是解题的关键.21. 为了解A 、B 两款品质相近的智能玩具飞机在一次充满电后运行的最长时间,有关人员分别随机调查了A 、B 两款智能玩具飞机各架,记录下它们运行的最长时间(分钟),并10对数据进行整理、描述和分析(运行最长时间用x 表示,共分为三组:合格,6070x ≤<中等,优等),下面给出了部分信息:7080x ≤<80x ≥A 款智能玩具飞机架一次充满电后运行最长时间是:1060,64,67,69,71,71,72,72,72,82B 款智能玩具飞机架一次充满电后运行最长时间属于中等的数据是:1070,71,72,72,73两款智能玩具飞机运行最长时间统计表,B 款智能玩具飞机运行最长时间扇形统计图 类别A B平均数 7070中位数 71b众数 a67方差30.426.6根据以上信息,解答下列问题:(1)上述图表中___________,___________,___________;=a b =m =(2)根据以上数据,你认为哪款智能玩具飞机运行性能更好?请说明理由(写出一条理由即可);(3)若某玩具仓库有A 款智能玩具飞机架、B 款智能玩具飞机架,估计两款智能200120玩具飞机运行性能在中等及以上的共有多少架? 【答案】(1),,;7270.510(2)B 款智能玩具飞机运行性能更好;因为B 款智能玩具飞机运行时间的方差比A 款智能玩具飞机运行时间的方差小,运行时间比较稳定;(3)两款智能玩具飞机运行性能在中等及以上的大约共有架. 192【解析】【分析】(1)由A 款数据可得A 款的众数,即可求出,由B 款扇形数据可求得合格数及a 优秀数,从而求得中位数及优秀等次的百分比; (2)根据方差越小越稳定即可判断;(3)用样本数据估计总体,分别求出两款飞机中等及以上的架次相加即可. 【小问1详解】解:由题意可知架A 款智能玩具飞机充满电后运行最长时间中,只有出现了三次,1072且次数最多,则该组数据的众数为,即;7272a =由B 款智能玩具飞机运行时间的扇形图可知,合格的百分比为, 40%则B 款智能玩具飞机运行时间合格的架次为:(架) 1040%4⨯=则B 款智能玩具飞机运行时间优等的架次为:(架) 10451--=则B 款智能玩具飞机的运行时间第五、第六个数据分别为:,70,71故B 款智能玩具飞机运行时间的中位数为:707170.52+=B 款智能玩具飞机运行时间优等的百分比为:1100%10%10⨯=即10m =故答案为:,,; 7270.510【小问2详解】B 款智能玩具飞机运行性能更好;因为B 款智能玩具飞机运行时间的方差比A 款智能玩具飞机运行时间的方差小,运行时间比较稳定; 【小问3详解】架A 款智能玩具飞机运行性能在中等及以上的架次为:200(架) 620012010⨯=架A 款智能玩具飞机运行性能在中等及以上的架次为: 200(架) 61207210⨯=则两款智能玩具飞机运行性能在中等及以上的共有:架, 12072192+=答:两款智能玩具飞机运行性能在中等及以上的大约共有架.192【点睛】本题考查了扇形统计图,中位数、众数、百分比,用方差做决策,用样本估计总体;解题的关键是熟练掌握相关知识综合求解.22. 某公司不定期为员工购买某预制食品厂生产的杂酱面、牛肉面两种食品.(1)该公司花费3000元一次性购买了杂酱面、牛肉面共170份,此时杂酱面、牛肉面的价格分别为15元、20元,求购买两种食品各多少份?(2)由于公司员工人数和食品价格有所调整,现该公司分别花费1260元、1200元一次性购买杂酱面、牛肉面两种食品,已知购买杂酱面的份数比牛肉面的份数多,每份杂酱50%面比每份牛肉面的价格少6元,求购买牛肉面多少份? 【答案】(1)购买杂酱面80份,购买牛肉面90份 (2)购买牛肉面90份 【解析】【分析】(1)设购买杂酱面份,则购买牛肉面份,由题意知,x ()170x -,解方程可得的值,然后代入,计算求解,进而可()152********x x +⨯-=x 170x -得结果;(2)设购买牛肉面份,则购买杂酱面份,由题意知,,计算求出a 1.5a 1260120061.5a a+=满足要求的解即可. 【小问1详解】解:设购买杂酱面份,则购买牛肉面份, x ()170x -由题意知,, ()152********x x +⨯-=解得,, 80x =∴,17090x -=∴购买杂酱面80份,购买牛肉面90份; 【小问2详解】解:设购买牛肉面份,则购买杂酱面份, a 1.5a 由题意知,, 1260120061.5a a+=解得,90a =经检验,是分式方程的解, 90a =∴购买牛肉面90份.【点睛】本题考查了一元一次方程的应用,分式方程的应用.解题的关键在于根据题意正确的列方程.23. 如图,是边长为4的等边三角形,动点E ,F 分别以每秒1个单位长度的速度同ABC :时从点A 出发,点E 沿折线方向运动,点F 沿折线方向运动,A B C →→A C B →→当两者相遇时停止运动.设运动时间为t 秒,点E ,F 的距离为y .(1)请直接写出y 关于t 的函数表达式并注明自变量t 的取值范围;(2)在给定的平面直角坐标系中画出这个函数的图象,并写出该函数的一条性质; (3)结合函数图象,写出点E ,F 相距3个单位长度时t 的值. 【答案】(1)当时,;当时,; 04t <≤y t =46t <≤122y t =-(2)图象见解析,当时,y 随x 的增大而增大 04t <≤(3)t 的值为3或 4.5【解析】【分析】(1)分两种情况:当时,根据等边三角形的性质解答;当时,04t <≤46t <≤利用周长减去即可;2AE (2)在直角坐标系中描点连线即可; (3)利用分别求解即可. 3y =【小问1详解】 解:当时, 04t <≤连接,EF由题意得,, AE AF =60A ∠=︒∴是等边三角形, AEF △∴;y t =当时,;46t <≤122y t =-【小问2详解】函数图象如图:当时,y 随x 的增大而增大; 04t <≤【小问3详解】当时,即;04t <≤3y =3t =当时,即,解得, 46t <≤3y =1223t -= 4.5t =故t 的值为3或.4.5【点睛】此题考查了动点问题,一次函数的图象及性质,解一元一次方程,正确理解动点问题是解题的关键.24. 为了满足市民的需求,我市在一条小河两侧开辟了两条长跑锻炼线路,如图;①AB ;②.经勘测,点B 在点A 的正东方,点C 在点B 的正北方A D C B ---A E B --10千米处,点D 在点C 的正西方千米处,点D 在点A 的北偏东方向,点E 在点A 的正1445︒南方,点E 在点B 的南偏西方向.(参考数据:60︒2 1.41,3 1.73)≈≈(1)求AD 的长度.(结果精确到1千米)(2)由于时间原因,小明决定选择一条较短线路进行锻炼,请计算说明他应该选择线路①还是线路②?【答案】(1)AD 的长度约为千米 14(2)小明应该选择路线①,理由见解析 【解析】【分析】(1)过点作于点,根据题意可得四边形是矩形,进而得出D DF AB ⊥F BCDF ,然后解直角三角形即可;10DF BC ==(2)分别求出线路①和线路②的总路程,比较即可. 【小问1详解】解:过点作于点,D DF AB ⊥F由题意可得:四边形是矩形, BCDF ∴千米, 10DF BC ==∵点D 在点A 的北偏东方向, 45︒∴,45DAF DAN Ð=Ð=°∴千米,10214sin 45DFAD ==»°答:AD 的长度约为千米; 14【小问2详解】由题意可得:,,10BC =14CD =∴路线①的路程为:(千米), 10214102410238AD DC BC ++=++=+»∵,,, 10DF BC ==45DAF DAN Ð=Ð=°90DFA ∠=︒∴为等腰直角三角形, DAF △∴,10AF DF ==∴, 101424AB AF BF AF DC =+=+=+=由题意可得, 60EBS Ð=°∴, 60E ∠=︒∴,,83tan 60AB AE ==°163sin 60ABBE ==°所以路线②的路程为:千米, 8316324342AE BE +=+=»∴路线①的路程路线②的路程, <故小明应该选择路线①.【点睛】本题考查了解直角三角形的实际应用,熟练掌握锐角三角函数的相关定义,掌握特殊角三角函数值是解本题的关键.25. 如图,在平面直角坐标系中,抛物线过点,且交x 轴于点22y ax bx =++()1,3,B 两点,交y 轴于点C .()1,0A -(1)求抛物线的表达式;(2)点P 是直线上方抛物线上的一动点,过点P 作于点D ,过点P 作y 轴BC PD BC ⊥的平行线交直线于点E ,求周长的最大值及此时点P 的坐标;BC PDE △(3)在(2)中周长取得最大值的条件下,将该抛物线沿射线方向平移个PDE △CB 5单位长度,点M 为平移后的抛物线的对称轴上一点.在平面内确定一点N ,使得以点A ,P ,M ,N 为顶点的四边形是菱形,写出所有符合条件的点N 的坐标,并写出求解点N 的坐标的其中一种情况的过程. 【答案】(1) 213222y x x =-++(2)周长的最大值,此时点 PDE △65105+()2,3P (3)以点A ,P ,M ,N 为顶点的四边形是菱形时或或 59,22N ⎛⎫- ⎪⎝⎭137,22⎛⎫ ⎪ ⎪⎝⎭137,22⎛⎫- ⎪ ⎪⎝⎭【解析】【分析】(1)把、代入计算即可;()1,3()1,0A -22y ax bx =++(2)延长交轴于,可得,进而得到,PE x F DEP BCO ∠=∠DPE OBC :::,求出的最大值即可;DPE PEOBC BC=周长周长::PE (3)先求出平移后的解析式,再设出M ,N 的坐标,最后根据菱形的性质和判定计算即可.【小问1详解】把、代入得,,()1,3()1,0A -22y ax bx =++3202a b a b =++⎧⎨=-+⎩解得,1232a b ⎧=-⎪⎪⎨⎪=⎪⎩∴抛物线的表达式为; 213222y x x =-++【小问2详解】 延长交轴于,PE x F∵过点P 作于点D ,过点P 作y 轴的平行线交直线于点E , PD BC ⊥BC ∴,, DEP BCO ∠=∠90PDE COB ∠=∠=︒∴,DPE OBC :::∴,DPE PEOBC BC=周长周长::∴, PEDPE OBC BC=⋅周长周长::∴当最大时周长的最大 PE PDE △∵抛物线的表达式为, 213222y x x =-++∴,()4,0B ∴直线解析式为, BC 122y x =-+2225BC OC OB =+=设,则 213,222P m m m ⎛⎫-++ ⎪⎝⎭1,22E m m ⎛⎫-+ ⎪⎝⎭∴, ()222131112222222222PE m m m m m m ⎛⎫=-++--+=-+=--+ ⎪⎝⎭∴当时最大,此时 2m =2PE =()2,3P ∵周长为, BOC :625OC OB BC ++=+∴周长的最大值为,此时, PDE △()26510625525+⨯+=()2,3P 即周长的最大值,此时点; PDE △65105+()2,3P 【小问3详解】∵将该抛物线沿射线方向平移个单位长度,可以看成是向右平移2个单位长度再CB 5向下平移一个单位长度, ∴平移后的解析式为,此抛物线对称轴为()()221317222142222y x x x x =--+-+-=-+-直线, 72x =∴设, 7,2M n ⎛⎫⎪⎝⎭(),N s t ∵,()2,3P ()1,0A -∴,,218PA =()()22227923324PM n n ⎛⎫=-+-=+- ⎪⎝⎭,()22227811024AM n n ⎛⎫=++-=+ ⎪⎝⎭当为对角线时,此时以点A ,P ,M ,N 为顶点的四边形是菱形 PA ∴与互相平分,且 PA MN PM AM =∴,解得()22981344n n +-=+32n =-∵中点坐标为,中点坐标为, PA 2130,22-+⎛⎫⎪⎝⎭MN 72,22s n t ⎛⎫+ ⎪+ ⎪ ⎪⎝⎭∴,解得,7123s n t ⎧+=⎪⎨⎪+=⎩5292s t ⎧=-⎪⎪⎨⎪=⎪⎩此时; 59,22N ⎛⎫-⎪⎝⎭当为边长且和是对角线时,此时以点A ,P ,M ,N 为顶点的四边形是菱形 PA AM PN ∴与互相平分,且AM PN PM PA =∴,解得 ()293184n +-=3732n =±∵中点坐标为,中点坐标为, PN 23,22s t ++⎛⎫⎪⎝⎭AM 7102,22n ⎛⎫- ⎪+ ⎪ ⎪⎝⎭∴,解得, 721230s t n ⎧+=-⎪⎨⎪+=+⎩12372s t ⎧=⎪⎪⎨⎪=±⎪⎩此时或;137,22N ⎛⎫ ⎪ ⎪⎝⎭137,22N ⎛⎫- ⎪ ⎪⎝⎭同理,当为边长且和是对角线时,此时以点A ,P ,M ,N 为顶点的四边形是菱PA AN PM 形∴和互相平分,且AN PM AM PA =,此方程无解; 281184n +=综上所述,以点A ,P ,M ,N 为顶点的四边形是菱形时或或59,22N ⎛⎫-⎪⎝⎭137,22⎛⎫⎪ ⎪⎝⎭; 137,22⎛⎫- ⎪ ⎪⎝⎭【点睛】本题是二次函数的综合题,考查了待定系数法,相似三角形的性质与判定,菱形的性质及应用,中点坐标公式等知识,解题的关键是用含字母的代数式表示相关点的坐标及相关线段的长度.26. 在中,,,点为线段上一动点,连接.Rt ABC :90ACB ∠=︒=60B ∠︒D AB CD(1)如图1,若,,求线段的长.9AC =3BD =AD (2)如图2,以为边在上方作等边,点是的中点,连接并延CD CD CDE :F DE BF 长,交的延长线于点. 若,求证:.CD G G BCE ∠=∠GF BF BE =+(3)在取得最小值的条件下,以为边在右侧作等边.点为所CD CD CD CDE :M CD 在直线上一点,将沿所在直线翻折至所在平面内得到. 连接BEM :BM ABC :BNM :,点为的中点,连接,当取最大值时,连接,将沿所AN P AN CP CP BP BCP :BC 在直线翻折至所在平面内得到,请直接写出此时的值. ABC :BCQ :NQCP【答案】(1) 53(2)见解析 (3) 435【解析】【分析】(1)解,求得,根据即可求解;Rt ABC :AB AD AB BD =-(2)延长使得,连接,可得,根据FB FH FG =EH ()SAS GFD HFE ::≌,得出四点共圆,则,60DEC DBC ==︒∠∠,,,B C D E EDB BCE ∠=∠,得出,结合已知条件BEC BDC ∠=∠6060BEH BEC BDC EDB ∠=︒-∠=︒-∠=∠得出,可得,即可得证;H BEH ∠=∠EB BH =(3)在取得最小值的条件下,即,设,则,CD CD AB ⊥4AB a =2BC a =,根据题意得出点在以为圆心,为半径的圆上运动,取的中点23AC a =N B a AB S,连接,则是的中位线,在半径为的上运动,当取最大值SP SP ABN :P 12a S :CP 时,即三点共线时,此时如图,过点作于点,过点作,,P S C P PT AC ⊥T N NR AC ⊥于点,连接,交于点,则四边形是矩形,得出是的中位R PQ NR U PURT PD ANR :线,同理可得是的中位线,是等边三角形,将沿所在直线PT ANR :BCS △BCP :BC 翻折至所在平面内得到,则,在中,ABC :BCQ :2120QCP BCP ∠=∠=︒Rt NUQ :勾股定理求得,进而即可求解. NQ 【小问1详解】解:在中,,,Rt ABC :90ACB ∠=︒=60B ∠︒∴, 963sin 32AC AB B ===∵,3BD =∴; 53AD AB BD =-=【小问2详解】证明:如图所示,延长使得,连接,FB FH FG =EH∵是的中点则,,, F DE DF FE =FH FG =GFD HFE ∠=∠∴, ()SAS GFD HFE ::≌∴, H G ∠=∠∴,EH GC ∥∴ 60HEC ECD ∠=∠=︒∵是等边三角形, DEC :∴, 60DEC EDC ∠=∠=︒∵, 60DEC DBC ==︒∠∠∴四点共圆,,,,B C D E ∴,,EDB BCE ∠=∠BEC BDC ∠=∠∴, 6060BEH BEC BDC EDB ∠=︒-∠=︒-∠=∠∵,G BCE BDE H ∠=∠=∠=∠。
2024年陕西省中考英语真题(A卷)(含答案)

试卷类型:A2024年陕西省初中学业水平考试英语试卷注意事项:1.本试卷分为第一部分(听力)和第二部分(笔试)。
全卷共10页,总分120分。
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3.请在答题卡上各题的指定区域内作答,否则作答无效。
4.考试结束,本试卷和答题卡一并交回。
第一部分(听力共30分)Ⅰ.听选答案(共15小题,计20分)第一节:听下面10段对话,每段对话后有一个问题,读两遍。
请根据每段对话的内容和后面的问题,从所给的三个选项中选出问题的正确答案。
(共10小题,计10分)1.A.Saying hello. B.Saying sorry. C.Saying thanks.2.A.A hat. B.A book. C.A toy.3.A.On the sofa. B.Under the sofa. C.Behind the sofa.4.A.A scientist. B.A writer. C.A teacher.5.A.Go to the party. B.Go to the club. C.Go to the museum.6.A.Excited. B.Tired. C.Surprised.7.A.Black. B.White. C.Yellow.8.A.Jason. B.Bob. C.Eric.9.A.For four years. B.For three years. C.For seven years.10.A.He agrees with the girl.B.He doesn’t agree with the girl.C.He cares little about the girl’s opinion.第二节:听下面两段材料,包括一篇独白和一段对话,每段材料后有几道小题。
期末考试试卷(A卷)标准答案及评分标准

武汉工业学院 2006 –2007 学年第 1学期 期末考试试卷(A 卷)标准答案及评分标准课程名称 数据结构 课程编号 05110一、填空题(每空1分,共20分)1. 四种类型的数据结构分别是: 表 、 树 、 图 和 集合 。
2. 假设按低下标行优先存储整数数组57A ⨯时,第一个元素的字节地址是100,每个整数占四个字节,则00a 的存储地址是 100 ,32a 的存储地址是 168 。
3. 在顺序表中插入或删除一个元素,平均需要移动 n/2 个元素,具体移动的元素个数与 位置 有关。
4. 二叉树的五种基本形态是 空树 、 只有根节点 、 根节点和左子树 根节点和右子树 和 根节点、左子树和右子树 。
(也可用图表示)5. 常用的有向图5种存储方法分别是 邻接表 、 逆邻接表、 十字链表 、 邻接矩阵 和 多重邻接表 。
6. 内部排序算法中的两种基本操作是 比较 和 交换 。
二、简答题(每小题8分,共40分) 1. 请给出以下有向图的:(1) 邻接矩阵; (2分) (2) 邻接表;(2分)(3) 从顶点a 出发的深度优先遍历序列;(2分) (4)从顶点e 出发的广度优先遍历序列;(2分)解答:(1)、邻接矩阵⎥⎥⎥⎥⎥⎥⎥⎥⎥⎥⎥⎦⎤⎢⎢⎢⎢⎢⎢⎢⎢⎢⎢⎢⎣⎡000000001000001100100100000000001010000000100000000010000000001(( (4)eufbvaca (其它符合规则的序列也可得分)2. 假设一棵二叉树的先序序列为EBADCFHGIKJ 和中序序列为ABCDEFGHIJK ,请画出该二叉树。
解答:该二叉树为:(画错一个分支扣0.5分)3、假设用于通信的电文仅由8个字母组成,字母在电文中出现的频率分别为0.07、0.19、0.02、0.06、0.32、0.03、0.21、0.10。
试构造一棵哈夫曼树并为这8个字母设计哈夫曼编码。
解答:哈夫曼树为(4分):(画错一个分支扣0.5分)哈夫曼编码为(4分):(画一个编码扣0.5分) 0.07:100 0.32:01 0.19:001 0.03:00001 0.02:00000 0.21:11 0.06:0001 0.10:1014、试从空树开始,画出按以下次序向2-3树(即3阶B-数)插入关键码的建树过程:20,30,50,52,60,68,70。
食品安全员能力测试试题A卷 含答案

食品安全员能力测试试题A卷含答案注意事项:1、考试时间:90分钟,本卷满分为100分。
2、请首先按要求在试卷的指定位置填写您的姓名、单位等信息。
3、本卷共三大题型分别为单选题、多选题和判断题,请在指定位置作答。
姓名:_________考号:_________一、单选题(本大题共45小题,每小题1分,共45分)1、食品()对其生产经营食品的安全负责。
A.企业B.生产者C.生产经营者D.从业者2、食品用工具容器最佳质材()。
A.不锈钢B.木制品C.竹制品D.铁制品3、餐饮服务提供者在散装食品的贮存位置可以不标明哪项内容()。
A.食品的名称B.食品的生产日期或生产批号C.食品的成分或者配料表D.保质期4、餐饮服务单位采购食品和食品原料,除需查验供货者的许可证外,还应查验()。
A、培训证明B、产品合格证明文件C、健康证D、上岗证5、食品加热后的冷藏保存是指食物在冰点以上()以下条件存放。
A、4℃B、10℃C、20℃D、30℃6、餐饮服务单位食品安全管理人员原则上每年应接受不少于()小时的餐饮服务食品安全集中培训。
A、20B、30C、40D、507、《餐饮服务食品安全监督管理办法》规定《餐饮服务许可证》超过有效期限仍从事餐饮服务的,应当()。
A.责令其立即停业B.督促限期续办《餐饮服务许可证》C.按未取得《餐饮服务许可证》查处D.以上都不是8、食品无毒无害,符合应当有的营养要求,对人体健康不造成任何急性、亚急性或者慢性危害,是()。
A、食品安全B、食品的绝对安全C、食品的相对安全D、食品卫生9、对专间的要求是()。
A.入口处应设置洗手、消毒、更衣设施的通过式预进间B.专间只设一扇门C.专间内无明沟D.以上都是10、餐用具使用卫生要求()。
A.接触直接入口食品的餐用具使用前洗净即可B.已消毒和未消毒的餐用具应分开存放C.使用过的一次性餐具,经冲洗后仍可以使用D.已消毒和未消毒的餐用具不用分开存放11、食品或者其包装最大表面面积大于20平方厘米时,食品标识中强制标注内容的文字、符号、数字的高度不得小于()。
大学英语(四)A-卷【考试试卷答案】

大学英语(四)课程考试A 卷 适用于;考试日期:; 试卷所需时间:120分钟 闭卷;试卷A 总分:100分。
Part I Listening Comprehension (30 points) Section A Short Conversations ( 10 points) Directions: In this section, you will hear 10 short conversations. At the end of each conversation, one question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the centre. 1. A. 3 blocks ahead. B. On the 3rd Street. C. At the 3rd Avenue. D. On the 5th Street. 2. A. To punish him. B. To pick him up. C. To reward him. D. To ignore him. 3. A. Theater. B. Restaurant. C. Airport. D. Train station. 4. A. She doesn ’t like either of them. B. John copied it from Jim. C. Jim copied it from John. D. One is the copy from the other. 5. A. Peter is going to fly to New York. B. Peter is going to fly to London next week. C. Peter went to London last week. D. Peter will stay in New York. 6. A. He feels Mike did a good thing. B. He doesn ’t think Mike should move. C. H e thinks it’s better to invest later. D. He doesn ’t think Mike should invest money on stocks. 7. A. Go to a movie. B. Go to her classes. C. Shop for some clothes. D. Buy some new glasses. 8. A. Because he doesn ’t have a TV . B. Because he hates to be bothered. C. B ecause he isn’t watching TV . D. Because he doesn ’t like any of the programs. 9. A. $ 100. B. $ 150. C. $ 200. D. $ 250. 10. A. She likes classical music. B. She needs 100 records. C. She prefers to have the same house I have. D. She is a jazz fan. Section B Long Conversation ( 5 points) Directions: In this section, you will hear one long conversation. At the end of the conversation, some questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the centre. 11. A. It ’s expensive. B. They are celebrating a birthday. C. It was recommended by a friend. D. They had dinner here before. 12. A. She wants to check the price. B. She wants to see if the menu is in French. C. She is in a hurry to eat. D. She spends a long time choosing her food. 13. A. A year. B. Only a minute. C. A month. D. A long time. 14. A. Snails are not on the menu. B. The restaurant doesn ’t have any left. C. They want shrimp cocktail instead. D. They are afraid of getting sick. 15. A. French cheese and white wine. B. Seafood. C. Duck. D. Salad and French cheese. Section C Passage ( 5 points) Directions: In this section, you will hear one short passage. At the end of the passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A) B) C) and D). Then mark the corresponding letter on Answer sheet with a single line through the centre. 16. A. On TV . B. On the radio C. In the newspaper. D. In a magazine 17. A. A scientific research. B. An invention. C. A visit to a scientist. D. A prize for some scientific discovery.18. A. Unpleasant. B. Cooperative. C. Sympathetic. D. Doubtful. 19. A. He refuted him. B. He went to the library. C. He went to the TV station D. He changed his major 20. A. After the age of 50. B. After the age of 30. C. Between the ages of 25 and 30. D. Between the ages of 30 and 50. Section D ( 10 points) Directions: In this section, you will hear a VOA Special English Report three times, and then fill in the blanks with the exact words you hear from the recording. We answered a question last week about how American college students findjobs after they (21)_________________. Now, we discuss foreign graduates. The院系: 班级: 姓名:学号:考场地点装订线(22)________________ for employing foreign workers in the United States is long. It involves different government agencies. It also involves (23)_____________________________________. For example, the American Recovery and Reinvestment Act that President Obama signed into law in February dealt with this issue. It included conditions against foreign workers displacing qualified Americans at companies that (24)________________________________. Job (25)______________ have slowed in some industries. But the economic downturn has cost millions of jobs and recovery will take some time. Foreign graduates need a job (26)________________ to get an H-1B visa. This is a (27)_________________ visa for work in the person’s area of specialty. The employer is the one who (28)_______________ for it. The visa is good for 3 years and may be extended for another 3 years. Cheryl Gilman directs visa services at the University of Southern California in Los Angeles. She noted that H-1B visas were still (29)_________________ for next year. This tells her that the recession is preventing employers from (30)_________________ as many foreign nationals as they have in the past. Part II Reading Comprehension (30 points) Section A Directions: There are two passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A) , B) , C) and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center. Passage One As people generally use the word “honor ” they do not do so in the context of thinking about moral virtue. As a result they often confuse honor with fame. A virtuous person is an honorable person, a person who ought to be honored by the community in which he or she lives. But the virtuous person does not seek honor, being secure in his or her own self-respect. Lack of honor does not detract from the efficacy of moral virtue as an operative factor in the pursuit of happiness —as a means to leading a good human life. Virtuous persons may be considered fortunate if their virtue is recognized and publicly applauded. Persons lacking moral virtue can achieve fame as readily as, or perhaps more easily than, those who have a high degree of moral virtue. Fame belongs to the great, the outstanding, and the exceptional, without regard to their virtue or lack of it. Infamy is fame, no less than popularity. The great scoundrel can be as famous as the great hero. There can be famous villains as well as famous saints. Existing in the reputation a person has, regardless of his or her accomplishments, fame does not tarnish as honor does when it is unmerited. We normally desire the esteem of our fellow human beings, but is not this wish for the esteem of others a desire for fame rather than for honor? A virtuous person will not seek fame or be unhappy for lack of it. For fame can be enjoyed by bad men and women, as well as good. When it is enjoyed by virtuous persons without being sought by them, it is not distinguishable from honor, for then it is deserved. 31. What does this passage mainly talk about? A. A virtuous person achieves both honor and fame. B. A virtuous person does not seek honor or fame. C. Honor and fame are different concepts. D. Honor and fame are not distinguishable. 32. A virtuous person leads a good human life by means of _________. A. presuming happiness B. achieving moral virtue C. seeking honor D. seeking fame 33. What tends to tarnish with time? A. The reputation a person has. B. A high degree of moral virtue. C. A person ’s accomplishments. D. Honor that is undeserved. 34. Fame differs from honor in that _______. A. bad men and women can enjoy fame B. the great people can enjoy fame C. fame can fade in color D. virtuous persons will not seek fame 35. Which of the following statements is TURE? A. A virtuous person deserves honor. B. A famous person deserves honor. C. A virtuous person is publicly identified. D. A famous person has great accomplishments. Passage Two If you want to teach your children how to say sorry, you must be good at saying it yourself, especially to your own children. But how you say it can be quite tricky. If you s ay to your children “I’m sorry I got angry with you, but …”, what follows that “but” can render the apology ineffective: “I had a bad day” or “your noise was giving me a headache ” leaves the person who has been injured feeling that he should be apologizing for his bad behavior in expecting an apology. Another method by which people appear to apologize without actually doing so is to say “I’m sorry you’re upset”; this suggests that you are somehow at fault for allowing yourself to get upset by what the other person has done.院系:班级: 姓名:学号:考场地点装订线Then there is the general, all covering apology, which avoids the necessity of identifying a specific act that was particularly hurtful or insulting, and which the person who is apologizing should promise never to do again. Saying “I’m useless as a parent” does not commit a person to any specific improvement. These pseudo-apologies are used by people who believe saying sorry shows weakness. Parents who wish to teach their children to apologize should see it as a sign of strength, and therefore not resort to these pseudo-apologies. But even when presented with examples of genuine contrition, children still need help to become aware of the complexities of saying sorry. A three-year-old might need help in understanding that other children feel pain just as he does, and that hitting a playmate over the head with a heavy toy requires an apology. A six-year-old might need reminding that spoiling other children’s expectations can require an apology. A 12-year-old might need to be shown that raiding the biscuit tin without asking permission is acceptable, but that borrowing a parent’s clothes without permission is not. 36. If a mother adds “but” to an apology, _______. A. she doesn’t feel that she should have apologized B. she does not realize that the child has been hurt C. the child may find the apology easier to accept D. the child may feel that he owes her an apology 37. According to the author, saying “I’m sorry you’re upset” most probably means “_______”. A. You have good reason to get upset B. I’m aware you’re upset, but I’m not to blame C. I apologize for hurting your feelings D. I’m at fault for making you upset 38. It is not advisable to use the general, all-covering apology because _______. A. it gets one into the habit of making empty promises B. it may make the other person feel guilty C. it is vague and ineffective D. it is hurtful and insulting 39. We learn from the last paragraph that in teaching children to say sorry _______. A. the complexities involved should be ignored B. their ages should be taken into account C. parents need to set them a good example D. parents should be patient and tolerant 40. It can be inferred from the passage that apologizing properly is _______. A. a social issue calling for immediate attention B. not necessary among family membersC. a sign of social progressD. not as simple as it seems Section B: Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the blank is identified by a letter. You may not use any of the words in the bank more than once. Blanks 41 to 50 are based on the following passage. There are two factors which determine an individual ’s intelligence. The first is the sort of brain he is born with. Human brains differ 41 , some being more capable than others. But no matter how good a brain he has to begin with, a (an)42 will have a low intelligence unless he has opportunities to learn. So the second factor in what happens to the individual is the sort of environment in which he is 43 . If an individual is handicapped environmentally, it is likely that his brain will fail to develop. And he will never 44 the level of intelligence of which he is capable. The importance of environment in determining an individual ’s intelligence can be 45 by the case history of the identical twins, Peter and Mark. Being identical, the twins had identical brain at birth, and their growth processes were the same. When the twins were three months old, their parents died, and they were placed in 46 foster homes. Peter was reared by parents of low intelligence in an isolated community with poor 47 opportunities. Mark was reared in the home of well-to-do parents who had been to college. He was read to as a child, sent to good schools, and given every opportunity to be 48 intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to 49 their intelligence. Mark ’s I.Q. was 125, twenty-five points higher than the 50 , and fully forty points higher than his identical brother. Given equal opportunities, the twins, having identical brains, would have scored at roughly the same level.院系: 班级: 姓名:学号:考场地点装订线Part III Vocabulary and Structure (10 points) Directions: There are 20 incomplete sentences in this part. For each sentence there are four choices marked A, B, C and D. Choose the One answer that best completes the sentence. 51. The boy wanted to ride his bicycle in the street, but his mother told him ____. A. not to B. not to do C. not do it D. do not to 52. Would you like a cup of coffee ____shall we get down to business right away? A. and B. then C. or D. otherwise 53. Not until all the fish died in the river ____how serious the pollution was. A. did the villagers realize B. the villagers realized C. the villagers did realize D. didn't the villagers realize 54. I ____that we would be able to leave tomorrow, but it's beginning to look difficult. A. hoped B. was hoping C. had hoped D. am hoping 55. A study shows that students living in non-smoking dorms are less likely to ____the habit of smoking. A. make up B. turn up C. draw up D. pick up 56. Many personnel managers say it is getting harder and harder to____honest applicants from the growing number of dishonest ones. A. distinguish B. disguise C. dissolve D. discount 57. According to the key witnesses, a peculiarly big nose is the criminal's most memorable facial____. A. feature B. hint C. spot D. signature 58. It's good to know that quite a few popular English expressions actually ____from the Bible. A. acquire B. obtain C. derive D. result 59. After working all day, he was so tired that he was in no____ to go to the party with us. A. taste B. mood C. sense D. emotion 60. There is already clear ____to show that plants and animals are being affected by climate change. A. witness B. certification C. identity D. evidence 61. Last year the advertising rate ____ by 20 percent. A. raised B. aroused C. arose D. rose 62. The student was just about to ______ the question, when suddenly he found the answer. A. arrive at B. submit to C. give in D. work out 63. Suddenly she grabbed her stomach and ______. A. threw away B. threw in C. threw up D. threw off 64. They have brought her out of the operating room, but she ’s not fully ____ yet. A. cautious B. conscience C. conscious D. confused 65. He _____ the job because it involved too much traveling. A. turns in B. turns out C. turns over D. turns down 66.To some _______, Mary still does not understand this unit. But she herself does not believe so. A. extend B. part C. extent D. content 67. He checked carefully to _______ the possible errors in his design. A. eliminate B. exceed C. enlarge D. vibrate 68. What we need to learn is how to put theory into _______ when we begin our fieldwork here. A. appearance B. application C. accomplish D. achievement 69. Jack is _______ of stealing the books from the library. A. accused B. witnessed C. strained D. found 70. The Foreign Minister made an excellent _______ on the current international situation. A. committee B. command C. comment D. commission Part IV Translation (15 points) Translate the following sentences into English. 71. 我从未受过正式培训,我只是边干边学. 72. 随着年龄越来越大,你应该考虑未来的计划。
《英语(一)》期末考试试卷【 A卷】和答案

1《英语(一)》期末考试试卷【A卷】(学年第一学期)注意:1.本试卷共 3 页;2.考试时间: 90 分钟Section A (1×15=15分)Directions: Choose the appropriate letters A—D to complete the following statements.1. I knew a new classmate Ann today. She is _______ America.A. forB. inC. toD. from2. All of his friends came to the airport to______ him____ .A. send…downB. see…offC. send…downD. se e…awa y3. It is of _______for us to get everything read before the party.A. greatly importantB. great importantC. great importanceD. greatly importance4. S1: Can you spare some time for me next week?S2: ______________.A. I’m really very busy now.B. OK. What can I do for you?C. I usually go out seeing movies in my spare time.D. My family will go traveling this evening.5. Would you _____to join us for dessert and coffee?A mind B. please C. like D. care6. I would___ for daily necessities tomorrow. Will you go with me?A. go to shopB. make shoppingC. go shoppingD. buy7. Chinese people have a special way to celebrate the Mid-autumn _______. .A. HolidayB. VacationC. EventD. Festival8. Jack is _______ about stamp collecting. In fact, he is willing to give everything for a rare stamp.A. interestedB. illC. crazyD. sick9. Two hundred people are expected to _______ the meeting.A. attendB. haveC. takeD. go10. Please us at campuslife@ if you need detailed information.A. touchB. contactC. searchD. tell11. Will it be _________ for you to start work tomorrow.A. convenientB. convenienceC. convenientlyD. conveniences12. It is overclouding in the sky and it _____like rain.A. isB. seemsC. seemD. be13. Passengers to pay duty on overweighed luggage.A. requireB. requiredC. are requiredD. were required14. Supermarkets usually provide a(n) Lane for customers with a purchase less than 8 items.A. ExpressB. Hurry-upC. Speed-upD. Fast15. It is difficult for me to __________ the twins ________.A. tel l…fromB. tel l…apartC. tel l…betweenD. tel l…amongSection B (1×10=10分)Directions: Complete each statement with the proper form of the word given in the brackets.16. Jackie Chan is admired by millions as an excellent (act).17. He was about the same (high) as his wife.18. there are as many as 30 different (nation) in this school.19. Tom falls in love with the most (attract) girl in his class.20. Our house was built in a (tradition) Chinese style.21. Many animals have (good) hearing than we do.22. Coin (collect) is one of Jim’s hobbies.23. Sam used to (keep) a pet ,when he was young.24. It’s my pleasure to (introduction) tonight’s speakers.25. He is a very (talk ) child.Part II Reading ComprehensionTask1 (2×5=10分)Directions: Read the passage and choose the appropriate letters A—D to answer each question.Perhaps the best way to think about making friends is to decide what makes a friend. I asked a group of 13 year old boys and girls to come up with a list of what they liked about their friends. They said that good friends: show an interest in what people dogo around with a pleasant expression on their facelaugh at people’s jokesare kindoffer to help others with work or carry thingsinvite people to do somethingare good at thinking of something interesting to doare willing to shareare humorous and tell jokesare fair26. According to the author, what is the best way to make friends?A) The best way is to talk to everyone.B) The best way is to do everything to make the person happy.C) The best way is to think everyone is good.D) The best way is to know what a good friend is.27. How did the author get the list?A) He thought it out.B) He copied it from a book.C) He summed up the ideas of a group of children.D) He made friends with a group of children.28. How many good qualities should a good friend have?A) 6. B) 7. C) 9. D) 10.29. Which of the following is NOT true?A) A good friend should have a sense of humor.B) A good friend should be able to tell jokes and enjoy others’ jokes.C) A good friend should always keep from getting into groups.D) A good friend should enjoy sharing things with others.30. Which of the following is the best title for this passage?A) What Makes a Good FriendB) The Best Way to Make FriendsC) The Results of a SurveyD) How to Make FriendsTask 2 (2×5=10分)Directions: Read the passage and choose the appropriate letters A—D to answer each question.Banks safeguard money and valuables and provide loans, credit, and payment services, such as checking accounts, money orders, and cashier’s checks. Banks may also offer investment and insurance products, which they were once prohibited from selling.As many models for cooperation and integration among finance industries have appeared, some of the traditional differences between banks, insurance companies, and securities firms have disappeared. In spite of these changes, banks continue to maintain and perform their primary role—accepting deposits and lending funds from these deposits.Commercial banks, which dominate the bank industry, offer a full range of services for individuals, businesses, and governments.31. What is the first paragraph mainly about?A. It introduces the types of banks.B. It introduces the functions of banks.C. It explains the traditional functions of banks.D. It discusses the business of banks.32. What are the traditional functions of a bank?A. It safeguards money and valuables.B. It provides loans, credit, and payment services.C. It safeguards money and valuables and provides loans, credit, and payment services.D. It sells investment and insurance products.33. Which of the following statements is not true?A. Banks also play the role of insurance companies.B. Banks safeguard money and valuables like securities firms do.C. Insurance companies cannot play the role of banks.D. The primary functions of banks will always be there. 34. What is the basic role of banks?A. Accept customer’s deposits.B. Back individuals or firms by lending funds.C. Provide firms with investments.D. Accept customer’s deposits and invest the deposits as funds.35. Which of the following is the best title for this passage?A. Nature of Bank IndustryB. Types of BanksC. Changes in Bank IndustryD. Functions of BanksTask 3 (1×5=5分)Directions: Read an ad. Fill in the blanks with Not More Than 3 words in the table below.Shaw’s SupermarketEarn up to $100 from your Shaw’s Osco Pharmacy.Click here for more information.Click here for new dinner ideas from Shaw’s and Swift Premium.Fresh Meal Solutions for Your Family!Click here for detailsAt Shaw’s, we offer you all the attention you could ever want, both online and in your neighborhood store.From pharmacy prescriptions to our in-store CoinStar service. From photo processing to great gift ideas like Gift Cards, prepaid calling cards and cellular programs. From Shaw’s.Task 4 (1×10=10分)Directions: Choose the appropriate letters A—Q to translate the Chinese expressions in the table. A………………………………………………golf course B………………………………………………swimming pool C………………………………………………invitation D…………………………………………credit card E………………………………………………online bank F………………………………………………a deposit form G………………………………………………get-together H………………………………………………going-away party I………………………………………………..family album23J ………………………………………………..instant message service K ………………………………………………withdraw L ………………………………………………check-out desk M ………………………………………………post card N ………………………………………………cashO ………………………………………………international campus P ………………………………………………celebration Q ………………………………………………great grandparentsTask 5 (1×5=5分)Directions: Read the invitation card and answer the questions.46. Whose birthday is it?It is . 47. How old is she going to be?She is going to be . 48. When is her birthday?It ’s on . 49. Where is the party going to be ?I t’s going to be held at . 50. What kind of card is it?It is .Part III TranslationDirections: Each of the four sentences (NO. 51 to NO. 54) is followed by four choices of suggested translationmarked A, B, C and D. Make the best choice and put the paragraph (No.65) into Chinese. (51-54:3×4=12分; 55: 8×1=12分)51. Chess must be one of the oldest games in the world. A. 象棋必须是世界上最古老的游戏之一。
重庆市中考语文试题(A卷)及答案解析(word版)
重庆市中考语文试题(A卷)及答案解析(word版)重庆市初中学业水平暨高中招生考试语文试题(a卷)(全卷共四个小题,满分150分后,考试时间120分钟)注意事项:1.试题的答案书写在答题卡上,严禁在试卷上轻易答题。
2.答题前深入细致写作答题卡上的注意事项。
3.考试结束,由监考人员将试题和答题卡一并收回。
一、语文科学知识及运用1.下列词语中加点字注音有误的一项是()a.戎装(róng)狂妄(yū)被褥(rù)刨根问底(páo)....b.檀香(tán)字帖(tiè)荒凉(pì)白驹过隙(jū)....c.曲折(ke)污垢(gou)抄写(teng)绰绰有余(zhuo)....d.肋骨(lèi)麻痺(bì)烙印(lào)失之东隅(yú)....【答案】c【解析】试题分析:字音重点考核多音字、形声字、形似字、音近字、方言、生僻字等。
c项词语中加点字注音有误。
改为:坷kě;垢gòu;誊téng;绰chuò。
2.下列词语书写全部的一项是()a.门框缅怀腐化惰落日月如梭b.诽谤瞻养花团锦簇寡不敌众c.训诫侥幸心不在蔫满目苍痍d.畸形贿赂疲惫不堪鞠躬尽瘁【答案】d【解析】试题分析:字形题从表象来看主要考核双音节词语和成语,有时可以考核三字的专业术语和熟语。
a惰―坠;b.瞻―赡;c.好些―矣;苍一疮。
3.以下句中加点词语采用有误的一项就是()a.中国这台被称作“天眼”的超大望远镜走在了科技的前沿,令世界瞩目。
..b.随着我市全民阅读活动的持续推进,书店受到越来越多市民的青睐。
..c.从小性格孤僻的她,自从参加学校的社团活动以后,渐渐变得豁然开朗了。
....d.重庆两江新区城市建设发展迅速,短短几年时间,一座座高楼鳞次栉比。
....【答案】c【解析】试题分析:c豁然开朗:形容一下子显得宽广或通达了。
高职《物理(一)》考试试卷(A)及答案
《物理(一)》考试试卷(A)一、判断题(1'×20)1、合力一定大于分力。
()2、重力的大小跟质量成正比。
()3、摩擦力一定是阻碍物体运动的。
()4、把一个力作用在有固定转动轴的物体上,这个力不一定有转动效果。
()5、若速度大,加速度一定大。
()6、加速度方向一定是运动方向。
()7、加速度为零时速度一定为零。
()8、伞兵开伞后从空中落下是自由落体。
()9、把一张纸片捏成很小的纸团后,从手中落下可看成自由落体。
()10、用力推小车就能使它由静止运动起来,小车没有保持住原来的静止状态,所以静止的小车没有惯性。
()11、原来静止的物体不受力是不会动的,所以力是产生速度和维持速度的原因。
()12、任何物体都有惯性。
()13、受力体一定也是施力体。
()14、马拉车时,由于马对车向前的拉力大小等于车对马向后的拉力的大小,二力平衡了,所以无论马用多大的力拉车都拉不动。
()15、物体的速度越大表明物体所受的合外力越大。
()16、手榴弹爆炸后,弹片会向同一方向飞出,因为动量守恒。
()17、同一物体受到的合力越大,它的加速度一定越大。
()18、弹簧秤和天平都是用来测物体的质量的。
()19、功是标量。
()20、质量相同的两个人都从一楼登上五楼,甲慢步,乙快步,两人上楼做的功相等,但是乙的功率大。
()二、选择题(2'×20)1、物体在运动过程中,初位置速度和高度分别为v1、h1,末位置速度和高度分别为v2 、h2,如果机械能守恒,下列哪个表达式是正确的()A、mgh1 + mgh2 = 1/2 mv12 + 1/2 mv22B、mgh1 -mgh 2= 1/2 m v22 -1/2 m v12C、mgh2 -mgh 1= 1/2 m v22-1/2 m v12D、mgh2 + 1/2 m v22 = mgh1 -1/2 mv122、从静止开始做匀加速直线运动的物体,第1s 内的位移是1m,则()A、第1s 末速度是1m/sB、第1s 内平均速度是1m/sC、第1s 内加速度是1m/s2D、以上三种说法都不对3、几个共点力作用在同一物体上,使它处于平衡若其中一个力F 停止作用,则物体将()A、改变运动状态,合力方向与F 相同B、改变运动状态,合力方向与F 相反C、改变运动状态,合力方向无法确定D、运动状态不变4、一块砖按照平放、侧放、立放三种不同位置摆放,最稳定的放法是()A、平放B、侧放C、立放D、一样稳定5、作用于同一物体上的两个力分别为5.0N和20N,当改变两力之间的夹角时,其合力的大小也随之改变,合力大小变化的范围是()A、5.0N至20NB、5.0N至25NC、15N至25ND、15N至20N6、下列物理量中都是矢量的为()A、质量、重力B、力、速度C、长度、密度D、时间、密度7、有两个共点力,一个是40N,另一个为F,它们的合力是100N,则F 的大小可能是()A、20NB、40NC、80ND、160N8、甲乙两物体以同一高度分别以初速度V甲和V乙水平抛出,且V甲>V乙落地时的水平距离x和下落所用时间为t ()A、X甲>X乙t甲>t乙B、X甲=X乙t甲=t乙C、X甲>X乙t甲=t乙D、X甲=X乙t甲>t乙9、下列哪一种说法是正确的()A、“第3s内”的时间比“第2s内”要多1sB、位移的大小不一定跟路程相等C、位置跟时间对应D、路程跟时刻对应10、物体在一直线上运动,第1秒末、2秒末、3秒末、4秒末的速度分别是1.0、2.0、4.0、8.0m/s,这个物体的运动是()A、匀速运动B、匀变速运动C、非匀变速运动D、以上三说都不正确11、甲物体速度由2.0m/s增加到10m/s,乙物体速度由6.0m/s增加到8.9m/s,这两个物体的加速度大小的关系是()A、a甲>a乙B、a甲=a乙C、a甲<a乙D、无法比较12、判断下列说法错误的是()A、受力体一定也是施力体B、人推车向前走时,人对车向前的推力大小等于车对人向后的推力大小C 、马拉车时,由于马对车向前拉力的大小等于车对马向后的拉力的大小,二力平衡,所以马永远拉不动车D 、地面上的马能前进,是因为马蹄向后蹬地面,从而获得向前的反作用力13、下列几种运动中,哪一种不是利用作用力和反作用力关系使物体获得动力的( )A 、人走路前进B 、在水中划船前进C 、人造卫星车太空中做环绕地球的飞行D 、喷气式飞机的飞行14、用弹簧秤拉着质量为1kg 的物体以1m/s 2的加速度向上运动和以1m/s 2的加速度向下运动时,弹簧秤的读数分别是(g 取10m/s 2)( )A 、10N ,1NB 、11N ,10NC 、11N ,9ND 、9N ,11N15、平射炮发射一枚炮弹的过程中(不计地面摩擦)下列哪种说法不正确( )A 、炮身的力量增大B 、炮弹动量增大C 、炮身和炮弹总动量不增大D 、炮身和炮弹的总动量增大16、相向运动的甲、乙两车相撞后又分开,但是一同沿甲原来的方向运动这一定是因为( )A 、甲车质量大于乙车质量B 、甲车速度大于乙车速度C 、甲车动量大于乙车动量D 、无法比较两车动量17、由牛顿第二定律可知,物体质量aFm ,对于m ,F ,a 三者关系,下列说法正确的是 ( )A 、a 一定时,m 跟F 成正比B 、F 一定时,m 跟a 成反比C 、F 一定时,a 跟m 成反比D 、以上三种都正确 18、关于动能的说法正确的是( )A 、速度大的物体,动能一定大B 、质量大的物体,动能一定大C 、物体受到力越大,动能一定大D 、物体的动能与它受力无关19、一物体在水平面上运动,当速度由0增大到v 时,其动能的变化量与速度由v 增大到2v 时动能的变化之比为( )A、1:1B、1:2C、1:3D、1:420、运动员用100N的力,把质量为1.0kg的足球以16m/s的速度踢出,球在地面上滚动的距离是20m,求此运动员对球所做的力应为()A、128JB、2000JC、1872JD、2128J三、计算题(10'×4)1、已知质量为0.10kg的物体在水平拉力的作用下,由静止开始沿水平面做匀加速直线运动,摩擦力f1的大小为0.20N,在4s内的位移S是0.80m,求:(1)水平拉力F的大小;(2)若使物体此后改为匀速运动,还需对它施加的阻力f2是多少?a2、质量10g,以8.0×102m/s的速度飞行的子弹,与质量60kg,以10m/s 的速度奔跑的运动员相比,哪一个动能大?3、一根弹簧的劲度系数为2x 103 N/m, 原长40cm. 要想使它产生200N的弹性拉力,弹簧应伸为多长?4、一拖拉机在耕地时匀速前进,120s 内前进240m ,拖拉机对犁的牵引力为2x104 N,求拖拉机耕地时的功率。
2023年人人急救全套试卷答案
理论考试(A卷)一、单选题(本类题共20题,共80分)1.(本题4分)救护员到达任何事故现场时,只有在___才能进行救护A、拔打急救电话B、确保环境是否安全C、迅速检查伤病员伤情2.(本题4分)在事故现场,发现有孕妇腿部出血,不能行走。
协助孕妇采取的体位是:A、仰卧位B、俯卧位C、复原体位D、左侧卧位3.(本题4分)现场判断伤病员心搏骤停的依据是____。
A、反应迟缓,但呼吸平稳B、无意识,无呼吸C、无意识,有呼吸4.(本题4分)发现有人神志不清,首先应该____。
A、注意保持其呼吸通畅B、掐人中C、人工呼吸5.(本题4分)单人心肺复苏时,打开气道后,立即给予___次人工呼吸A、1次B、2次C、3次6.(本题4分)心肺复苏时,按压/通气比例是___。
A、15:1B、30:2C、30:17.(本题4分)当您正在为一名8岁以下儿童实施CPR 时,其他人取来了AED。
但是,这个AED 没有儿童电极片。
您应该A、使用成人电极片,确保它们不互相接触。
B、决定不适用AED,因为电极片是供成人用的。
C、停止CPR,因为CPR 根本没用。
D、将AED 电极片放在衣服之上,以减少电击强度。
8.(本题4分)救治婴儿气道异物梗阻的方法哪项是错误的。
A、背部叩击法B、胸部冲击法C、将婴儿足部提起,头向下拍击后背9.(本题4分)解除成人气道异物不完全梗阻的首选方法是____。
A、鼓励其大声咳嗽B、立即进行腹部冲击C、立即进行胸部冲击10.(本题4分)下列哪些表现属于动脉出血____。
A、血色鲜红,出血可呈涌泉状或随心搏节律性喷射B、血色暗红,大量涌出C、血色鲜红,渗出11.(本题4分)救护腹部开放性损伤肠管溢出的伤病员时,应将伤病员置于何种体位 ____。
A、头低脚高位B、仰卧屈膝位C、平卧位12.(本题4分)现场处理骨盆骨折伤员时,现场处理哪项是正确的______。
A、仰卧屈膝位固定骨盆B、头高脚低位固定骨盆C、给伤员饮用大量水补充血容量13.(本题4分)在空间狭窄或有浓烟的环境下,应采用 ____方法搬运伤病员。
2023年卫生招聘考试之卫生招聘(文员)真题练习试卷A卷附答案
2023年卫生招聘考试之卫生招聘(文员)真题练习试卷A卷附答案单选题(共60题)1、因不可抗力导致合同无法履行的,当事人可以行使()。
A.合同撤销权B.合同解除权C.违约责任请求权D.损害赔偿的请求权【答案】 B2、甲、乙是夫妻,共育有一子一女,均已成年,甲的老父亲因缺乏劳动能力而与甲、乙一家共同生活,甲因意外受伤而瘫痪卧床,其妻乙对甲逐渐冷淡,也不愿意照顾甲的起居,而他们的子女则十分孝顺,经常为甲擦洗或送吃的穿的,后来甲死亡,留下个人财产5万元。
对于甲的遗产分配,下列说法错误的是()。
A.甲的老父亲与甲的子女为第一顺序继承人B.甲的妻子乙因不照顾甲而降为第二顺序继承人C.对甲的老父亲在分配时应给予适当照顾D.甲的子女在分配时可以多分遗产【答案】 B3、根据我国现行《婚姻法》的规定,应属于夫妻一方财产的是()。
A.婚姻关系存续期间夫妻一方的中奖所得B.婚姻关系存续期间夫妻一方的生产或经营收益C.婚姻关系存续期间夫妻一方的知识产权收益D.丈夫婚前购买的房屋一套【答案】 D4、某县公安局民警李某在饭店宴请战友时,与饭店经理王某发生冲突,并将饭店的彩电砸坏,饭店向李某多次索赔无果。
对此,下列说法正确的是()。
A.饭店可直接要求县公安局赔偿损失B.饭店可直接向市公安局提起行政复议C.饭店应向法院直接起诉李某,要求赔偿损失D.饭店应向法院直接起诉县公安局,要求赔偿损失【答案】 C5、汉朝政府派往西域最早的地方官员是:A.西域都护B.使者校尉C.西域长史D.戊己校尉【答案】 B6、甲与乙在篮球赛中不慎发生碰撞,两人均受伤,各花去了5000元医疗费。
据查,甲乙两人均无过错。
请问,甲的人身损害应由谁承担?()。
A.甲B.乙C.甲或乙D.甲和乙【答案】 D7、判断“抚仙湖古城是在一次巨大的自然灾害中陷落”的依据是:A.抚仙湖地区正好位于小江断裂带西支的深断裂带上,历史上就是地震频发区B.东汉时期,云南横断山脉曾有火山岩浆喷发,导致地形改变C.公元110年东汉时期,这里曾经发生过一次大地震D.通过对湖周围地区地理地质环境的考察和比较【答案】 D8、甲委托乙购买某型号山地车一辆,乙到商场后发现山地车脱销,担心甲急需使用,遂为之购买普通自行车一辆,甲拒收,乙诉至法院。