题目内容

下列数组中,不能构成无向图的度数列的数组是( ).

A. (1,1,1,2,3)
B. (1,2,3,4,5)
C. (2,2,2,2,2)
D. (1,3,3,3)

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氯霉素不能与阿奇霉素合用的原因是:

A. 减少阿奇霉素的吸收
B. 抑制肝药酶活性,使阿奇霉素代谢减少
C. 竞争与细菌核糖体50S亚基的结合产生拮抗效应
D. 诱导肝药酶活性,使阿奇霉素代谢增加
E. 竞争与血浆蛋白结合,使阿奇霉素的血药浓度降低

下列哪项不是氯霉素的不良反应?

A. 灰婴综合征
B. 耳毒性
C. 骨髓抑制
D. 再生障碍性贫血
E. 二重感染

A tone somewhat lower and quieter than normal speech should be ______ for greater clarity.

A. adopted
B. managed
C. conferred
D. transferred

Secretaries are expected to _____ staff opinions on matters of concern to gain maximum co-operation and ideas for improving productivity and efficiency.

A. agree with
B. solicit
C. comment on
D. inform

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