题目内容

射极输出器的输出电阻小,说明该电路的()。

A. 带负载能力强
B. 带负载能力差
C. 减轻前级或信号源负载
D. 取信号能力强

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The word "expedited" (Line 4, Para.5) is closest in meaning to

A. faster.
B. quieter.
C. wider.
D. cheaper.

According to Paragraph 4, an official act is deemed corruptive only if it involves

A. leaking secrets intentionally.
B. sizable gains in the form of gifts.
C. concrete returns for gift-givers.
D. breaking contracts officially.

A.recallB.forgetC.avoidD.keep

A. recall
B. forget
C. avoid
D. keep

which of the following contributions to long waits at major airport?

A. New restrictions on carry-on bags.
B. The declining efficiency of the TSA.
C. An increase in the number of travelers.
D. Frequent unexpected secret checks.

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