题目内容

25()

A. study
B. research
C. report
D. document

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26()

A. independent
B. dependent
C. reliable
D. liable

闭合导线的纵横坐标增量之和理论上应为______。

22()

A. growing
B. improving
C. developing
D. increasing

28()

A. businesses
B. companies
C. corporations
D. economies

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