It has been announced that candidates __

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问题选择题

It has been announced that candidates _____ remain in their seats until all the papers have been collected.

A．can

B．will

C．may

D．shall

答案

答案：D

选择题

The time he has devoted in the past years _______ the homeless is now considered _________ of great value.

A．to help; being

B．to helping; to be

C．to help; to be

D．helping; being

单项选择题

下列哪项是前置胎盘的积极保守治疗最主要的目的

A．减少感染
B．延长孕周
C．减少 * * 出血
D．减少胎儿窘迫
E．降低剖宫产率