主机出现故障切换到备机运行时间不大于（）分钟。 A.3 B.4 C.5 D.10_爱下问搜题

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问题单项选择题

主机出现故障切换到备机运行时间不大于（）分钟。

A.3

B.4

C.5

D.10

答案

参考答案：C

选择题

The final exam ____, your parents will not probably allow you to listen to music.[ ]

A. drawing near

B. draw near

C. is drawing near

D. is drew near

单项选择题 B1型题

婚久不孕，月经周期先后不定，经期腹痛，经量少，色黯有块，经前乳胀。应首选（）

A.加味逍遥丸

B.养精种玉汤

C.开郁种玉汤

D.启宫丸

E.毓麟珠