题目内容

直流电动机风扇可有可无。

A. 对
B. 错

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The publication of the poet's most recent works will certainly _______ his nationalreputation.

A. magnify
B. strengthen
C. enlarge
D. enhance

The workers’ demands are ____: they are asking for only a small increase in their wages.

A. normal
B. moderate
C. inadequate
D. insignificant

Peach trees are considered _______ when they begin bearing fruit .

A. ripe
B. mature
C. adult
D. senior

The young nation has not yet attained political _______.

A. stability
B. prosperity
C. maturity
D. dependence

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