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Think of three morpheme prefixes, give their meaning, and specify the types of stem they may be prefixed to. Give at least two examples of each.Model: a-prefix: a-meaning: “without; not”stem type: added to adjectivesexamples: asymmetric, “lacking symmetry” asexual, “without sex or sex organs”

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The italicized part in each of the following sentences is an inflectional morpheme. Study each inflectional morpheme carefully and point out its grammatical meaning.Sue moves in high-society circles in London.A traffic warden asked John to move his car.The club has moved to Friday, February 22nd.The branches of the trees are moving back and forth.

现有电池Zn(s)|ZnCl2 (b)|AgCl(s)|Ag(s),作为原电池,Zn电极和 Ag电极分别可以称为()。

A.正极 阴极
B. 负极 阳极
C. 阳极 正极
D. 正极 阴极

按物体导电方式的不同而提出的第二类导体,对于它的特点的描述,下列哪一点是不正确的?( )

A. 其电阻随温度的升高而增大
B. 其电阻随温度的升高而减小
C. 其导电的原因是离子的存在
D. 当电流通过时在电极上的化学反应发生

描述通过的电量与电极反应的产物的量之间的关系是( )

A. 欧姆(ohm)定律
B. 离子独立运动定律
C. 法拉第(Faraday)定律
D. 能斯特定律

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