Diagnostic of Flooding and Hysteresis Phenomena for Proton Exchange Membrane Fuel Cell using Cyc
高一英语地理常识单选题30题
高一英语地理常识单选题30题1.The Great Wall is located in _____.AB.ChinaC.JapanD.England答案：B。
本题考查世界著名地理景观的所在国家。
选项A 美国没有长城；选项C 日本没有长城；选项D 英国没有长城。
只有中国有长城。
2.The Pyramids are in _____.A.IndiaB.EgyptC.FranceD.Canada答案：B。
选项 A 印度没有金字塔；选项 C 法国没有金字塔；选项D 加拿大没有金字塔。
埃及有金字塔。
3.The Statue of Liberty is in _____.A.RussiaB.AustraliaAD.Germany答案：C。
选项A 俄罗斯没有自由女神像；选项B 澳大利亚没有自由女神像；选项 D 德国没有自由女神像。
美国有自由女神像。
4.The Eiffel Tower is located in _____.A.ItalyB.SpainC.FranceD.Brazil答案：C。
选项A 意大利没有埃菲尔铁塔；选项B 西班牙没有埃菲尔铁塔；选项D 巴西没有埃菲尔铁塔。
法国有埃菲尔铁塔。
5.The Sydney Opera House is in _____.A.CanadaB.AustraliaC.New ZealandD.South Africa答案：B。
选项A 加拿大没有悉尼歌剧院；选项C 新西兰没有悉尼歌剧院；选项D 南非没有悉尼歌剧院。
澳大利亚有悉尼歌剧院。
6.The Taj Mahal is in _____.A.ChinaB.IndiaC.JapanD.Thailand答案：B。
选项 A 中国没有泰姬陵；选项 C 日本没有泰姬陵；选项D 泰国没有泰姬陵。
印度有泰姬陵。
7.The Grand Canyon is in _____.A.MexicoAC.CanadaD.Brazil答案：B。
微型极化反射激光传感器数据手册说明书
DatasheetMiniature Polarized Retroreflective Laser Sensors•Visible Class 1 laser•Narrow effective beam provides small-object detection and precise position control•Crosstalk rejection algorithm protects against optical disturbance from adjacent sensors•Excellent optical performance throughout sensing range, even close up•10 V dc to 30 V dc operation, with complementary (SPDT) NPN or PNP outputs, dependingon model•Bright LED operating status indicators are visible from 360°•Compact, rugged sealed housing, protected circuitry•Mounting versatility – popular 18 mm threaded barrel or side-mount•Choose 2 m (6.5 ft) or 9 m (30 ft) cable or one of four QD optionsExcellent for applications where high sensing power and small beam size are important. Uses a specialfilter to polarize the emitted light, filtering out unwanted reflections from shiny objects.WARNING:•Do not use this device for personnel protection•Using this device for personnel protection could result in serious injury or death.•This device does not include the self-checking redundant circuitry necessary to allow its use inpersonnel safety applications. A device failure or malfunction can cause either an energized (on) or de-energized (off) output condition.ModelsStandard 2 m (6.5 ft) cable models are listed. To order a 9 m (30 ft) cable model, add the suffix “W/30” to the model number (for example, QS18VN6LLP W/30).To order QD models with a 4-pin integral Euro-style QD, add suffix “Q8” (for example, QS18VN6LLPQ8); to order a 4-pin Euro-style 150 mm (6 in.) pigtail QD, add suffix “Q5” (for example, QS18VN6LLPQ5); to order a 4-pin integral Pico-style QD, add suffix “Q7”(for example, QS18VN6LLPQ7); to order a 4-pin Pico-style 150 mm (6 in.) pigtail QD, add suffix “Q” (for example, QS18VN6LLPQ). Models with a QD connector requires a mating cable.Installation NotesConventional retroreflective photoelectric sensors are extremely easy to align. Beam angles are wide, and retro targets are forgiving to the light beam’s angle of incidence. The beam of this laser sensor is very narrow, compared with the beam of most retro sensors. As the figure indicates, the effect of angular misalignment can be dramatic. Alignment is critical because the beam may miss the retroreflective target unless the target is large.For example, with one BRT-51X51BM mounted at a distance of 6 m (20 ft) from the sensor, one degree of angular misalignment will cause the center of the laser beam to miss the center of the target by 100 mm (4 inches).WORLD-BEAM® QS18LLP SeriesOriginal Document118900 Rev. J5 May 2022118900Alignment TipWhen using a small retroreflective target at medium or long range, it is often useful to temporarily attach (or suspend) a strip ofretroreflective tape (for example, BRT-THG-2) along a line that intersects the actual target. The visible red laser beam is easily seen in normal room lighting on such tape. Sight along the beam toward the target (from behind the sensor). Move the sensor to sweep the laser beam back and forth across the retro tape strip. Use the tape strip to guide the beam onto the target.Consider using sensor mounting bracket model SMB18SF or SMB3018SC. A swivel bracket can simplify multiple-axis alignment.Alignment is complete when the visible image is centered on the retro target. The perpendicularity of the laser beam to the face of the retro target is forgiving, just as it is with a conventional retroreflective sensor.Effective Beam SizeUnlike conventional retroreflective sensors, the retroreflective laser has the ability to sense relatively small profiles. The table indicates the diameter of the smallest opaque rod which will reliably break the laser beam at several sensor-to-object distances.These minimum object sizes were measured with the sensor aligned to a BRT-51X51BM reflector and with the sensor set for an excess gain of about 10X. Flooding effects are possible when the gain is much higher. This means that sensor gain may have to be reduced in some situations in order to reliably detect these minimum object sizes.CAUTION:•Never stare directly into the sensor lens.•Laser light can damage your eyes.•Avoid placing any mirror-like object in the beam. Never use a mirror as a retroreflective target.Note that the shape of the beam is elliptical. The minimum object sizes listed assume passage of the rod across the major diameter of the ellipse (worst case). It may be possible to detect objects smaller than the sizes listed if the direction in which the objects pass through the beam can be controlled.Retroreflector RecommendationsBRT-51X51BM recommended for beam-block applications up to 10 m range. The reflector is included with the sensor. See Accessories on page 5 for information about ordering replacements or other reflector options.Note: When sensing objects with specular reflections, use the sensor’s side-mounting option to optimize sensing performance. - Tel: + 1 888 373 6767P/N 118900 Rev. JWiring DiagramsCabled wiring diagrams are shown.Quick disconnect wiring diagrams are functionally identical.NPN (Sinking) OutputsPNP (Sourcing) Outputs–+Wiring Key1 = Brown2 = White3 = Blue4 = BlackSpecificationsSupply Voltage10 V DC to 30 V DC (10% maximum ripple) at less than 15 mA, exclusive of load Sensing BeamVisible red laser , 650 nmLaser CharacteristicsWavelength: 650 nm visible red Class 1 laser Pulse Width: 7 microseconds Rep Rate: 130 microsecondsAverage Output Power: 0.065 mWSupply Protection CircuitryProtected against reverse polarity and transient voltagesOutput ConfigurationSolid-state complementary (SPDT): NPN or PNP (current sinking or sourcing), depending on model;Rating: 100 mA maximum eh output at 25 °C Off-state leakage current:NPN: less than 200 µA at 30 V DC (See Application Note 1)PNP: less than 10 µA at 30 V DC ON-state saturation voltage:NPN: less than 1.6 V at 100 mA PNP: less than 3.0 V at 100 mAOutput Protection CircuitryProtected against false pulse on power-up and continuous overload or short circuit of outputs Output ResponseNote: 200 millisecond delay on power-up; outputs do not conduct during this time700 microseconds ON/OFF Repeatability130 microseconds Sensing Hysteresis 12% of range typicalAdjustmentsSingle-turn sensitivity (Gain) adjustment potentiometerIndicators2 LED indicators on sensor top:Green solid: Power on Amber solid: Light sensedAmber flashing: Marginal excess gain (1 to 1.5x excess gain)ConstructionABS housing, rylic lens cover, 3 mm mounting hardware includedConnections2 m (6.5 ft) 4-wire PVC cable, 9 m (30 ft) 4-wire PVC cable, 4-pin Pico-style or Euro-style QD, 4-pin Pico-style or Euro-style 150 mm (6 in) pigtail QD,depending on model Laser ClassificationClass 1 laser product; Complies with IEC 60825-1:2014 and 21 CFR1040.10, except for deviations pursuant to Laser Notice 56, dated May 8,2019Operating ConditionsRelative Humidity: 95% at +50 °C maximum relative humidity (non-condensing)Temperature: –10 °C to 50 °C (14 °F to 122 °F)Application NotesNPN off-state leakage current is < 200 µA for load resistances > 3 kΩ or optically isolated loads. For load current of 100 mA, leakage is < 1% of load current.CertificationsBanner Engineering Europe Park Lane, Culliganlaan 2F bus 3, 1831 Diegem,BELGIUMTurck Banner LTD Blenheim House, Blenheim Court,Wickford, Essex SS11 8YT,Great BritainRequired Overcurrent ProtectionWARNING: Electrical connections must bemade by qualified personnel in accordance with local and national electrical codes and regulations.Overcurrent protection is required to be provided by end product application per the supplied table.Overcurrent protection may be provided with external fusing or via Current Limiting, Class 2 Power Supply.Supply wiring leads < 24 AWG shall not be spliced.P/N 118900 Rev. J - Tel: + 1 888 373 67673DimensionsCabled Models3 mm (0.12")(0.67")Pico-Style QD ModelsPigtail4-pinPico-Style QDEuro-Style QD ModelsPigtail4-pin Euro-Style QDLocknut (included with all models)Washer (included with all models)Ø 17.8 mm(0.70")(0.94")M3 Hardware Packet Contents:• 2 – M3 x 0.5 x 20 mm SS Screw • 2 – M3 x 0.5 SS Hex Nut • 2 – M3 SS WasherDescription of Class 1 LasersClass 1 lasers are lasers that are safe under reasonably foreseeable conditions of operation, including the use of optical instruments for intrabeam viewing.Reference IEC 60825-1:2014CAUTION:•Return defective units to the manufacturer.•Use of controls or adjustments or performance of procedures otherthan those specified herein may result in hazardous radiation exposure.•Do not attempt to disassemble this sensor for repair. A defective unitmust be returned to the manufacturer.For Safe Laser Use (Class 1 or Class 2):•Do not stare at the laser.•Do not point the laser at a person’s eye.•Mount open laser beam paths either above or below eye level, where practical.•Terminate the beam emitted by the laser product at the end of its useful path. - Tel: + 1 888 373 6767P/N 118900 Rev. JAccessoriesP/N 118900 Rev. J - Tel: + 1 888 373 67675Brackets - Tel: + 1 888 373 6767P/N 118900 Rev. JSMB3018SC•18 mm swivel side or barrel-mount bracket•Black reinforcedthermoplastic polyester•Stainless steel swivellocking hardware includedHole center spacing: A = 50.8Hole size: A = ø 7.0, B = ø 18.0Retroreflective TargetsBanner offers a wide selection of high-quality retroreflective targets. Go to for complete information.Note: Polarized sensors require corner cube type retroreflective targets only. Reflectivity factor when comparedwith the standard BRT-3 reflector.BRT-51X51BM•Square, acrylic target•Reflectivity Factor: 1.5•Temperature: –20 °C to +50 °C (–4 °F to +122 °F)•Micro-prism geometry•Optional brackets are available•Approximate size: 51 mm × 51 mm100(4.0")(40")(400")(4000")(0.4")1000EXCESSGAINDISTANCEBRT-35X35BM•Square, acrylic target•Reflectivity Factor: 1.2•Temperature:-20 °C to +60 °C(-4 °F to +140 °F)•Micro-prism geometry•Approximate size:35 mm × 35 mmBanner Engineering Corp. Limited WarrantyBanner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture which, at the time it is returned to the factory, is found to have been defective during the warranty period. This warranty does not cover damage or liability for misuse, abuse, or the improper application or installation of the Banner product.THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE.This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO EVENT SHALL BANNER ENGINEERING CORP. BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY EXTRA COSTS, EXPENSES, LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM ANY PRODUCT DEFECT OR FROM THE USE OR INABILITY TO USE THE PRODUCT, WHETHER ARISING IN CONTRACT OR WARRANTY, STATUTE, TORT, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE.Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any obligations or liabilities relating to any product previously manufactured by Banner Engineering Corp. Any misuse, abuse, or improper application or installation of this product or use of the product for personal protection applications when the product is identified as not intended for such purposes will void the product warranty. Any modifications to this product without prior express approval by Banner Engineering Corp will void the product warranties. All specifications published in this document are subject to change; Banner reserves the right to modify product specifications or update documentation at any time. Specifications and product information in English supersede that which is provided in any other language. For the most recent version of any documentation, refer to:.For patent information, see /patents.© Banner Engineering Corp. All rights reserved。
高三英语12月月考试题_1 11
重点中学2021届高三英语12月月考试题制卷人：歐陽文化、歐陽理複；制卷時間：二O 二二年二月七日— 第一局部 听力〔一共两节，满分是30分〕第一节〔一共5小题;每一小题分，满分是7. 5分〕听下面5段对话。
每段对话后有一个小题,从题中所给的A 、B 、C 三个选项里面选出最正确选项。
听完每段对话后,你都有10秒钟的时间是来答复有关小题和阅读下一小题。
每段对话仅读一遍。
1. How does the man probably feel?A.Regretful. B. Nervous.2. Where does the conversation probably take place?A.At home. B. In a hospital.3. How much do two shirts cost?A.$40. B. $50. 4. Why does the woman want to sell her car?A. To pay her school fees.B. To protect the environment,C. To practice riding a bike well. 5. What can we know about Jennifer?A.She likes talking. B. She lives hard.C. Happy. C. In a restaurant. C. $60. C. She is honest.第二节〔一共15小题;每一小题1. 5分，满分是22. 5分〕听下面5段对话或者独白。
每段对话或者独白后有几个小题,从题中所给的A、B、C三个选项中选出最正确选项。
听每段对话或者独白前，你将有时间是阅读各个小题，每一小题5秒钟；听完后，各小题将给出5秒钟的答题时间是。
每段对话或者独白读两遍。
听第6段材料，答复第6、7题。
6.What does the woman advise the man to do?A.Go skiing with her.B.Visit Zhangjiakou together.C.Celebrate the Spring Festival.7.What are the speakers mainly talking about?A. A working schedule.B. A trip.C. A festival.听第7段材料，答复第8、9题。
第五章水体污染的毒性试验方法
2. DO：不能低于4mg/L 3. 水温：21～25℃
4.光照: 12—16h
5. 试验用水:未污染的自然的河水或湖水，需 过滤去悬浮物，或用标准稀释水 。如用自来 水，要暴气。
水的硬度: 19～250mg/L (以CaCO3计) ； pH： 6.0—8.5
四、试验步骤
1. 预备试验 目的: (1) 确定正式试验的浓度范围；
在全生活周期的慢性毒性试验中对生物不产生影响的浓度。
安全浓度=
24hLC50 0.3 (24hLC50 / 48hLC50 )3
安全浓度=
48hLC50 0.3 (24hLC50 / 48hLC50 )2
安全浓度=96LC50×（0.1～0.01）
不易分解的取0.01～ 0.05；容易分解的取 0.05～0.1
加强自身建设，增强个人的休养。202 0年11 月19日 上午1时 56分20 .11.192 0.11.19
扩展市场，开发未来，实现现在。202 0年11 月19日 星期四 上午1时 56分2 秒01:56:0220.1 1.19
做专业的企业，做专业的事情，让自 己专业 起来。2 020年1 1月上 午1时56 分20.1 1.1901:56November 19, 2020
时间是人类发展的空间。2020年11月1 9日星 期四1时 56分2 秒01:56:0219 November 2020
科学，你是国力的灵魂；同时又是社 会发展 的标志 。上午1 时56分 2秒上 午1时56 分01:5 6:0220. 11.19
每天都是美好的一天，新的一天开启 。20.11. 1920.1 1.1901:5601:56 :0201:5 6:02No v-20
➢确定环境因子（如DO、pH、水温、硬度等）对水生生物是 否适宜，以及他们对化学物质毒性的影响
油层物理术语大集合
Technicality of reservoir physics油层物理术语集合Chapter 1Porosity 孔隙度Permeability渗透性Saturation 饱和度Solid matrix 基质Sensibility敏感性Sandstone砂岩Carbonate rock 碳酸盐岩size composition粒度组成specific surface比面clastic rock 碎屑gravel砾silt 粉砂slime泥grain-size analysis 粒度分析Sieve analysis 筛析法Sedimentation method 沉降法vibration sieve 振动筛size grade 粒级grain size distribution curve粒度分布曲线grain size cumulative distribution curve 粒度累计分布曲线Nonuniform coefficient 不均匀系数Sorting coefficient 分选系数Standard deviation 标准偏差degree of divergence 分散程度Penetrant method 透过法Absorptive method吸附法perviousness 透过性flow rate 流量fracture裂缝consolidation 胶结psephicity磨圆度off-take potential产能geologic reserve 地质储量Intergranular pore 粒间孔Dissolved pore 溶蚀孔Fracture 裂缝diagenesis 成岩作用tectonic stress 构造应力Single medium 单纯介质Dual medium 双重介质Triple medium 三重介质Skewness 歪度Kurtosis 峰态Ratio of pore throat 孔喉比Pore constriction number 孔隙配位数Pore tortuosity 孔隙迂曲度Cast 铸体Supercapillary pore超毛管孔隙Capillary pore毛细管孔隙Microcapillary pore微毛细管孔隙Interconnected pore连通孔隙Isolated pore 孤立孔隙Absolute porosity绝对孔隙度Effective porosity有效孔隙度Flowing porosity流动孔隙度recoverable reserves可采储量weatherproof 抗风化resisting corrosion 抗溶蚀mica云母pyrite 黄铁矿Flake structure片状结构stratum 地层cementation胶结作用Driving pressure differential 驱动压差Coating sample with paraffin 封蜡法Saturating sample with kerosene 饱和煤油法Gas porosimeter 气体孔隙度仪Solid stereometer固体体积法Representative elementary volume （REV）表征性体积单元Confining pressure 围压pay bed 产层Rock compressibility 岩石压缩系数fluid compressibility 流体压缩系数Initial saturation of fluid 原始流体饱和度connate water封存水irreducible water saturation束缚水饱和度residual water saturation残余水饱和度tertiary oil recovery 三次采油secondary oil recovery 二次采油Retort method 常压干馏法Solvent extraction 溶剂抽提法Chromatography 色谱法crack裂解coke结焦porous medium多孔介质rate of volume flow 体积流量nitrogen gas 氮气slippage effect 滑脱效应conic curve 圆锥曲线viscous fluid flow of Newton牛顿粘性流动viscous fluid flow 粘滞阻力momentum transfer 动量交换horizontal bedding 水平层理wavy bedding 波状层理cross- bedding 交错层理graded bedding 递变层理rhythmic bedding 韵律层理connectivity 连通度complementary relationship 互补关系seepage resistance 渗流阻力arithmetic mean 算术平均weighted average 加权平均logarithmic mean 对数平均reciprocal mean 倒数平均harmonic mean 调和平均geometric mean 几何平均composite layer 组合层mud cake 泥饼wellbore 井眼attitude 产状water sensitivity水敏velocity sensitivity 速敏acid sensitivity 酸敏sulfate 硫酸盐kiesel 硅质basal cement 基底胶结porous cement 孔隙胶结contact cement 接触胶结clay swelling 粘土膨胀acidic mineral 酸性矿物Chapter 2Crude oil 原油Hydrocarbon 烃类Non-hydrocarbon非烃类Gum 胶质asphaltene 沥青质dry gas reservoir 干气藏wet gas reservoir湿气藏condensate gas reservoir凝析气藏volatibility oil reservoir挥发性油藏black oil reservoir黑油油藏light oil reservoir轻质油藏viscous crude oil reservoir稠油油藏phase equilibrium 相平衡polyphase system 多相系统Component 组分Pseudo-component 拟组分Composition 组成Phase state 相态Phase diagram 相图Single component system 单组份体系Bicomponent system 双组分体系Saturated vapor pressure curve饱和蒸汽压线Bubble-point curve泡点线Dew-point curve露点线Envelope curve包络线Cricondentherm point 临界凝析温度点Cricondenbar point 临界凝析压力点Critical point 临界点Miscible flooding混相驱Retrograde condensation反凝析Saturation pressure 饱和压力Demarcation point分界点Viscosity粘度Flash separation 闪蒸分离Stage separation 级次分离Solubility溶解度Solubility factor 溶解系数solute 溶质dissolvent 溶剂equation of phase state相态方程thermodynamics 热动力学dynamic equilibrium动态平衡Equilibrium constant 平衡常数Mole fraction摩尔分数Convergence pressure 收敛压力Compressibility压缩性Flowability流动性Non associated gas 气田气Condensate gas 凝析气Associated gas 伴生气sweet gas 净气sour gas 酸气aqueous vapor水蒸气standard condition标态Relative density相对密度EOS（equation of state ）状态方程Ideal gas理想气体Actual gas实际气体Compressibility factor压缩因子Parameter参数attractive force吸引力repulsion force 排斥力deviation误差partial difference 偏差corresponding state对应状态reduced state对比状态intensive properties强度性质Empirical formula经验公式Chart board 图版Gas formation volume factor 天然气体积系数Natural gas compressibility factor天然气压缩系数isothermal condition等温条件Pseudoreduced compressibility 视对比压缩系数shear force 剪切力velocity gradient 速度梯度thermal motion热运动paraffin hydrocarbon 烷烃naphthenic hydrocarbon 环烷烃aromatic hydrocarbon 芳烃solutions gas-oil ratio 溶解气油比Volume factor of in-place oil 原油体积系数inorganic salt 无机盐Salinity矿化度Hardness硬度divalent cation 二价阳离子genesis factor成因PVT apparatus set 高压物性仪aquifer encroachment 水侵Chapter 3interface phenomenon 界面现象immiscible substances 非混相物质macroscopic distribution 宏观分布Interfacial tension 界面张力Interfacial free energy 表面自由能reciprocal solution 互溶transition layer 过渡层non volume work 非体积功volumetric behavior 容量性质Specific interfacial free energy比界面自由能tangent direction切向Interfacial adsorption phenomenon界面吸附现象Physical absorption 物理吸附Chemical absorption 化学吸附W etting润湿W ettability润湿性W etting phase润湿相Non-wetting phase 非润湿相Preferential wettability 选择性润湿Contact angle 接触角Adhesion work 附着功three-phase junction三相接触点W etting reverse 润湿反转Surfactant表面活性剂Heterogeneity非均质性Speckled wettability 斑状润湿Mixing wettability 混合润湿Clay泥岩Quartz石英limestone石灰岩dolomite白云feldspar长石Surface roughness表面粗糙度W etting hysteresis 润湿滞后Advancing angle前进角Receding angle后退角Static wetting hysteresis 静润湿滞后Dynamic wetting hysteresis 动润湿滞后displacement efficiency驱替效率recovery efficiency采收效率displacing front驱替前缘区multiphase flow 多相流动区simultaneous flow of oil and water 油水同流Fine particles微粒irreducible water束缚水water flooding注水spontaneous imbibition measurement 自吸入法spontaneous imbibition centrifuge measurement 自吸离心法spontaneous imbibition displacement measurement 自吸驱替法Contact angle measure 接触角法Capillarity毛细管作用Capillary pressure毛细管压力curved interface弯曲界面curvature曲率liquid column液柱Capillary hysteresis毛管滞后driving force驱替力Capillary pressure curve毛管压力曲线drainage curve 驱替曲线imbibition curve吸入曲线Semi-permeable membrane method 半渗透隔板法Mercury injection method压汞法Centrifuge method 离心法Qualitative features 定性特征Quantitative features 定量特征Threshold pressure排驱压力Median saturation pressure饱和度中值压力Min saturation of wetting phase最小湿相饱和度Ejection efficiency of nonwetting phase 非湿相退出效率Apparent contact angle视接触角Non-piston 非活塞性Droplet-bubble effect 珠泡效应W edge effect楔压效应Hysteresis effect 滞后效应Jamin effect贾敏效应Resultant force 合力Demulsifier 破乳剂Finger advance微观指进Haines jumps 赫恩斯阶跃Effective permeability 有效渗透率Brine water盐水Relative permeability 相对渗透率Mobility流度Mobility ratio流度比。
水环境化学部分-本科-答案2008
昆明理工大学环境工程专业2008级环境化学习题（水环境化学部分）一、选择题1、海水中Hg2+主要以_______的形式存在。
a) Hg(OH)2 , HgCl2 b) HgCl2 , HgCl3-c) HgCl42- d) HgCl3- , HgCl42-2、若水体的pE值高，有利于下列_______ 组在水体中迁移。
a) Fe、Mn b) Cr、Fe c) Cr、Mn d) Cr、V3、当前最简单，也较流行的是将金属划分为溶解态和颗粒态，溶解态是能通过______μm孔径滤膜的部分。
a) 0.54 b) 0.22 c) 0.45 d) 0.504、河水中阴、阳离子的含量顺序为______。
a) Na+ > Mg2+ > Ca2+，HCO3- > SO42- > Cl-b) Ca2+ > Na+ > Mg2+，HCO3- > SO42- > Cl-c) Na+ > Ca2+ > Mg2+，Cl- > HCO3- > SO42-d) Na+ > Mg2+ > Ca2+，Cl- > SO42-> HCO3-5、某一水体的BOD20为100 mg/L，其BOD5约为__________。
a)40 b) 50 c) 35 d) 706、下列各种形态的汞化物，毒性最大的是______。
a) Hg(CH3)2 b) HgO c) Hg d) Hg2Cl27、有机物的辛醇-水分配系数常用________表示。
a)K oc b) K ow c) K om d) K d8、一般情况下，当水体DO______时，鱼类会死亡。
a) >8.0mg/L b) <4.0 mg/L c) >0 d) >4.0 mg/L9、表面活性剂含有很强的，容易使不溶于水的物质分散于水体，而长期随水流迁移。
A 疏水基团B亲水基团 C 吸附作用 D渗透作用二、填空题1、环境中某一重金属的毒性与其状态、浓度和价态有关。
小学上册第十四次英语第4单元测验试卷
小学上册英语第4单元测验试卷考试时间：80分钟（总分:100）B卷一、综合题(共计100题共100分)1. 听力题：In a redox reaction, one substance is oxidized while another is _____.2. 听力题：The capital of the United Kingdom is __________.3. 听力题：She has a ________ (wonderful) voice.4. 填空题：I enjoy ______ (参与) in learning sessions.5. 听力题：The capital of Kazakhstan is __________.6. 填空题：My friend and I are in the same __________. (班级)7. 填空题：The _____ (松鼠) hides acorns for the winter. It is quite clever! 松鼠为冬天藏下橡果。
它非常聪明！8. 听力题：We celebrate New Year in ______ (January).9. 选择题：What do you call the study of plants?A. BiologyB. BotanyC. ZoologyD. EcologyThe _____ (冰淇淋) is cold.11. 填空题：The owl is a _______ (夜行性) animal.12. 选择题：Which animal is known for building dams?a. Beaverb. Otterc. Foxd. Muskrat答案:A13. 选择题：What do you call the frozen form of water?A. LiquidB. GasC. IceD. Steam答案:C14. 填空题：The ancient Egyptians practiced _____ as part of their religion.15. 听力题：The _______ of sound can vary depending on the medium it travels through.16. 选择题：What do we call the study of insects?a. Entomologyb. Zoologyc. Botanyd. Ecology答案:a17. 填空题：The __________ (历史的回味) evokes nostalgia.18. 小壁虎) clings to the walls. 填空题：The ___19. 填空题：The spider has eight ______.A __________ (元素周期表) helps classify elements based on their properties.21. 填空题：The __________ (历史的图景) paints a broad picture.22. 听力题：The ________ (laboratory) is where experiments happen.23. 听力题：In a solution, the substance that is dissolved is called the _____.24. 选择题：What is the capital of Argentina?a. Buenos Airesb. Santiagoc. Limad. Montevideo答案:a25. invasive species) disrupt local ecosystems. 填空题：The ____26. 听力题：I like to ___ with my friends. (hang out)27. 填空题：I want to learn how to ________ (打篮球) better.28. 填空题：The squirrel has a bushy ______ (尾巴) for balance.29. 听力题：She is _______ (whispering) a secret to her friend.30. 填空题：The invention of the calculator changed how people _____.31. 填空题：Many plants are ______ (适应性强) to their surroundings.32. 听力题：The atomic mass of an atom is approximately equal to the total number of _____ and neutrons.A catalyst is used to _______ a reaction.34. 听力题：I see a __ in the garden. (butterfly)35. 听力题：The _____ (社区) is friendly.36. 选择题：What is the name of the fairy tale character who lost her glass slipper?A. Snow WhiteB. CinderellaC. Sleeping BeautyD. Rapunzel答案: B37. 听力题：A liquid has a definite volume but takes the shape of its ______.38. 填空题：The sound of rain is very ______ (放松).39. 听力题：The formula for calculating the number of moles is mass divided by ______.40. 选择题：What is the name of the famous scientist known for his work on the periodic table?A. Dmitri MendeleevB. Antoine LavoisierC. Robert BoyleD. Marie Curie答案: A41. 听力题：An active volcano is one that has erupted ______.42. 填空题：The __________ is a major river that flows through Nigeria. (尼日尔河)43. 选择题：What is the scientific name for the common house cat?A. Canis lupusB. Felis catusC. Ursus arctosD. Equus ferus答案:B44. 选择题：What is the name of the device used to measure temperature?A. BarometerB. ThermometerC. HydrometerD. Anemometer答案:B45. 填空题：Water is made up of two hydrogen atoms and one _______ atom. (氧)46. 填空题：The __________ (历史的回应) addresses concerns.47. 填空题：The _____ (狐狸) is very agile and quick.48. 填空题：We have a ______ (快乐的) time at family reunions.49. 选择题：What do we call a group of turtles?A. NestB. PodC. BaleD. Turn答案:A. Turn50. 听力题：A _______ is a large area of flat grassland.51. 听力题：The _______ of light can be affected by its wavelength.52. 听力题：The flowers are _______ (blooming).53. 听力题：The chemical formula for iron(III) chloride is _____.54. 选择题：Which is the largest ocean on Earth?A. AtlanticB. IndianC. ArcticD. Pacific答案:D55. 选择题：How many months have 30 days?A. 4B. 5C. 6D. 7答案: A56. 听力题：She has a ___ (brother/sister) and a dog.57. 填空题：The sloth is known for being very _______ (慢).58. 填空题：The garden is _______ (充满生机的)。
第八版《实验动物照顾与使用指南》中有关水生环境的注意事项和建议
·145·畜 牧 兽 医农业开发与装备 2014年第3期在2011年出版的第八版《实验动物照顾与使用指南》中，第三章出现包括水生动物的环境、饲养间及管理。
涉及各种各样的鱼、水生或半水生的爬行动物和两栖动物的各种需要。
指南旨在通过文本和期刊论文将经验丰富的照顾者的信息和建议传播给读者。
尽管现有众多文献，我们仍希望能提供一些额外的有用信息。
在护理和使用斑马鱼超过25年的俄勒冈大学，可以提供一般适用于其他水生物种的饲育经验。
本文遵循大纲的水生动物部分，提供用于研究的水生动物的保健。
1 水生环境和管理根据定义，水生动物必须有水才能饲养，半水生动物的生活必须与水相伴。
在照顾水生动物模型时，水质的重要性不言而喻。
指南中指出，“不同的物种及年龄的水生动物对水质需求和敏感性参数”。
水质快速变化时会引起压力变化，甚至导致水生生物死亡。
“当水生动物表现出异常行为或遇险时，应该最先检查水质。
水质测试执行包括温度、pH、氮废物（氨、亚硝酸盐和硝酸盐）、磷、氯、氧化还原潜力，电导率或盐度、硬度、碱度、溶解氧气、总气体压力、离子和金属含量等。
对于一个给定水生或半水生物种水的系统的设计时水质要求规定必须适当的测试。
例如，要保持氧气溶解量，应进行水质测试的定期检查，仪器校准和测试包内过期日期。
重要的是，当故障排除，参数测量的自动化系统应分别验证校准系统或测试套件。
定期维护和校准的记录应与其他饲养记录共同保存。
任何化合物用于条件水（霰石提高水的pH值）都应该评估其安全水生或半水生物种和其潜在的损害生物安全。
过滤器和过滤器媒体用来治疗水和保持水质量应该定期监控。
监控和维护所需要的适用于消毒单位的过滤器，灯泡和灯泡套筒的紫外线消毒单位应该改变以增加紫外线剂量降解。
定期评估紫外线消毒设备的有效性，通过使用微生物学的监控可以帮助确认正常操作条件和整体水质保证策略。
此外，组织病理学结果是可以用作间接测量紫外线效果，特别是对于很难培养的病原体。
受损海洋生态系统的诊断内容
受损海洋生态系统的诊断内容引言：海洋生态系统是地球上最大的生态系统之一，由各种生物群落、物种和生态过程组成。
然而，随着人类活动的不断扩大和加剧，海洋生态系统也面临着越来越严重的威胁。
为了保护和恢复受损的海洋生态系统，我们需要对其进行诊断，以了解其当前的健康状况，并采取相应的措施。
一、物种多样性的评估物种多样性是海洋生态系统的关键指标之一，它反映了生态系统内物种的丰富程度和相对数量。
通过对不同海洋区域的生物样本进行采集和分析，可以评估物种多样性的水平。
例如，通过对珊瑚礁进行生物物种调查，可以了解珊瑚礁生态系统的物种多样性。
此外，还可以通过DNA分析等技术手段来识别和鉴定物种，进一步提高评估的准确性。
二、生境质量的评估生境质量是影响海洋生态系统健康的重要因素之一。
评估生境质量可以考虑多个方面，包括水质、底质、光照等。
通过采集水样、底栖动物样本和水下摄像等方法，可以评估水域的营养盐含量、溶解氧含量、有害物质浓度等指标，从而判断生境质量的好坏。
此外，还可以通过测量海洋植被的生长状况和覆盖率来评估生境质量。
三、生态功能的评估生态功能是海洋生态系统的重要属性，它包括能量流动、物质循环和生态过程等。
评估生态功能可以通过测量生态系统的产量、呼吸作用、养分循环等指标来进行。
例如，通过测量海洋植物的光合作用速率和生物量，可以评估海洋生态系统的初级生产力。
此外，还可以通过测量底栖动物的呼吸作用、分解速率等指标来评估生态功能。
四、生态系统服务的评估生态系统服务是指人类从生态系统中获得的直接或间接的利益，包括食物供应、气候调节、水资源调节等。
评估生态系统服务可以通过调查和研究人类对海洋生态系统的利用情况来进行。
例如，通过调查渔业资源的状况和捕捞量，可以评估海洋生态系统对渔业的支持能力。
此外，还可以通过研究海洋生态系统对沿海地区的风暴保护、海水净化等功能的贡献来评估其生态系统服务。
结论：通过对受损海洋生态系统的诊断，可以全面了解其当前的健康状况，并为采取相应的保护和恢复措施提供科学依据。
利用SOS/umu测试方法鉴定沙颍河河水中的遗传毒性物质
1 材料与方法（ Materials and methods） 1． 1 实验试剂及仪器
色谱纯甲醇、丙酮、正己烷、二氯甲烷和乙腈购 自 Fisher Chemical （ Fair Lawn，NJ，USA） ，4-硝基喹 啉-1-氧化 物 （ 4-nitroquinoline-1-oxide，4-NQO，纯 度
98% ，Acros Organics ） 和 2-氨 基 蒽 （ 2-aminoanthracene，2-AA，纯度 96% ，Acros Organics） 用作阳性对 照； 二甲基亚砜（ dimethyl sulfoxide，DMSO，ACS 级， 美国 AMRESCO） 为稀释溶剂和阴性对照； 十二烷基 磺酸钠（ SDS） ； 邻硝基酚-β-D-半乳糖苷（ O-nitrophenol-b-D-galactopyranoside，ONPG，东京化成） ； 酵母膏 提取物（ yeast extract，OXIOD） ； 胰蛋白胨（ tryptone， OXIOD） ； BIO-RAD 550 酶标仪； Costar 96 孔酶标板； Minishaker 震荡器。
图 1 沙颍河流域采样点 Fig． 1 Sampling site from Shaying River
1． 3 HPLC 分割 高效液相色谱分割的色谱条件： 采用 RP C18