电势测量中，电极中有微小电流流过，产生电极电势。()
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The tone in this passage can best be described as ______.
A. objective
B. sentimental
C. indifferent
D. subjective
下列不是行政诉讼程序的有()。
A. 起诉
B. 受理
C. 裁决
D. 审理
当我们用系统观点去分析问题时，有时候会发现鱼与熊掌可以兼得。()
A. 正确
B. 错误
According to the passage, the law of diminishing marginal utility_____.
A. is explained by income and substitution effects
B. explains why the additional units yield less utility
C. slows that the additional units yield less satisfaction
D. (effects the consumer's desire to get the cheapest buy
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