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【单选题】
对于电池反应Cu 2+ + Zn = Cu + Zn 2+ ,下列说法正确的是A.
当c(Cu 2+ )=c(Zn 2+ )时,电池反应达到平衡
B.
当 时 ,电池反应达到平衡
C.
当原电池的标准电动势为0时,电池反应达到平衡
D.
当原电池的电动势为0时,电池反应达到平衡
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【简答题】By using the Inductrack, the train will slow down and finally rest on ______ when the power is off.
【单选题】When using similes or metaphors…
A.
Less is definitely more.
B.
It’s better not to use the trite and clichéd examples as they’ve been used many times before.
C.
Better to avoid using similes one after the other.
D.
All of the above.
【简答题】When using public transportation, the visitors are suggested ______ because in this way they may know less about the local culture.
【简答题】Which of the following effects is most likely to occur when using ratio screens for high dividend yield stocks and low P/E stocks, respectively?
【单选题】流感病室用食醋熏蒸消毒，每100m3空间食醋的用量为( )
A.
5～10ml
B.
20～40ml
C.
50～100ml
D.
200～400ml
E.
500～1000ml
【单选题】传统的中医理论中,“五行”即指( )是对大自然里事物的总结和提炼。
A.
木、火、土、金、水
B.
生、克、乘、侮
C.
仁、义、礼、智、信
D.
老阴，少阴，少阳，老阳
【单选题】When using the words every day, ____.
A.
you understand better how they are used
B.
you become more confident about using them
C.
you may not be able to use "thin" or "narrow" correctly
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