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单选题
69 A preliminary B progressive C complete D curious
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A
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C
D
D
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更多 “单选题69 A preliminary B progressive C complete D curiousA AB BC CD D” 相关考题
考题
电池符号为:Zn|Zn2＋(0.1mol／L)||Cu2＋(0.1mol／L)|Cu其电池反应和电极反应为()
A.电池反应：Zn+Cu2+↔Zn2++Cu电极反应：正极：Zn-2e↔Zn2+负极：Cu2++2e↔CuB.电池反应：Zn+Cu2+↔Zn2++ Cu电极反应：正极：Cu2++2e↔Cu负极:Zn-2e↔Zn2+C.电池反应：Zn2++Cu↔Zn+Cu2+电极反应：正极：Cu2++2e↔Cu负极：Zn-2e↔Zn2+D.电池反应：Zn2++Cu↔Zn+Cu2+电极反应：正极：Zn-2e↔Zn2+负极：Cu2++2e↔Cu
考题
根据Henderson-Hasselbalch方程式求出，酸性药物的pKa-pH=A.lg (Ci×Cu)B.lg (Cu/Ci)C.Ig (Ci-Cu)D.lg( Ci+Cu)E.lg( Ci/Cu)
考题
The(69)Process Group consists of the processes used to complete the work defined in the project management plan to accomplish the project's requirements．A．PlannlngB．ExecutingC．Monitoring and ControllingD．Closing
考题
● Which statement about the preliminary design stage of a software development project is true? （75） .（75）A．The preliminary design is an internal document used only by programmersB．The preliminary design is the result of mapping product requirements info software and hardware functionsC．The preliminary design of the product comes from the requirement specificationD．The developers produce the preliminary design by defining the software structure in enough detail to permit coding
考题
根据Henderson-Hasselbalch方程式求出，碱性药物的pKa-pH为A、lg(Ci/Cu)B、lg(Ci×Cu)C、lg(Ci+Cu)D、lg(Ci-Cu)E、lg(Cu/Ci)
考题
The notion of NP-completeness has provided a(66)mathematical definition for(67)intractability of NP problems. But this measure applies only to worst-case complexity. Being NP-complete does not(68)that a problem is intractable on the average case. Indeed, some NP-complete problems are "(69)on average", though some may not be. Levin initiated the study of average-case intractability, He showed that a bounded tiling problem under a simple distribution is average-case NP-complete. Since then, several additional average-case NP-complete problems have been shown within Levin's(70). This paper is intended to provide a comprehensive survey of average-case NP-complete problems that have been published so far, and the techniques of obtaining these results.A．relaxedB．roughC．rigorousD．feasible
考题
下列反应能自发进行
2Fe3++Cu=2Fe2++Cu2+
Cu2++Fe=Fe2++Cu
由此比较，a. φ Fe3+/Fe2+ 、b. φCu2+/Cu、C. φFe2+/Fe的代数值大小顺序应为：
A. c>b>a B. b>a>c C. a>c>b D. a>b>c
考题
在混凝土理论配合比确定中，混凝土的施工配制强度按照（ ）确定。
A．cu,o≥cu,k+1．645×σ
B．cu,o>cu,k+1．645×σ
C．cu,o=cu,k+11645×σ
D．cu,o≥cu,k+2×σ
考题
根据Henderson-Hasselbalch方程式求出，酸性药物的pKa-pH=（）A、lg（Ci×Cu）B、lg（Cu/Ci）C、Ig（Ci-Cu）D、lg（Ci+Cu）E、lg（Ci/Cu）
考题
有关Cu+离子的叙述不正确的是（）A、Cu+氧化能力强于Cu2+，在酸性溶液中Cu+易歧化B、Cu+的配合物无未成对电子，都没有颜色C、2Cu+↔Cu+Cu2+，其平衡常数=106，所以Cu+的化合物在水溶液中很稳定。D、Cu+必须形成难溶物或配合物才能稳定存在
考题
已知：Cu2+/Cu+的E°=+0.158V，Cu+/Cu的E°=0.522V，则反应2Cu+→Cu2++Cu的lgK是（）A、1×（0.158-0.522）/0.0592B、1×（0.522-0.158）/0.0592C、2×（0.522-0.158）/0.0592D、1×（0.522+0.158）/0.0592
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肝肿瘤局部介入性治疗疗效分级（意大利Liviraghi）（）。①CR（Complete Response）为100％组织坏死②PR（Partial Response）坏死55％～99％③MR（Minor Response）55％坏死④PD（Progressive disease）肿瘤增力ⅡA、分为二级①②B、分为二级①③C、分为三级①②③D、分为四级①②③④
考题
电池Cu∣Cu2+∣∣Cu+，Cu2+∣Pt和电池Cu∣Cu+∣∣Cu+，Cu2+∣Pt的电池反应均可写成：Cu+Cu2+→2Cu+，此两电池的（）A、△rG0m和E0均相等B、△rG0m相同，E0不同C、△rG0m不同，E0相同D、△rG0m和E0均不同
考题
单选题肝肿瘤局部介入性治疗疗效分级（意大利Liviraghi）（）。①CR（Complete Response）为100％组织坏死②PR（Partial Response）坏死55％～99％③MR（Minor Response）55％坏死④PD（Progressive disease）肿瘤增力ⅡA
分为二级①②B
分为二级①③C
分为三级①②③D
分为四级①②③④
考题
单选题Progressive assimilation happens in the words EXCEPT_________.A
happenB
openC
carpenterD
amidst
考题
名词解释题先决问题（preliminary question）
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