You can certainly leave the classroom as

题型:选择题

问题:

You can certainly leave the classroom as soon as your homework__________.

A.has done

B.has been done

C.will be done

D.will have been done

考点:一般现在时将来进行时过去完成进行时过去将来时的被动语态
题型:选择题

体重达出生体重3倍的年龄是()

A.新生儿

B.8个月

C.1岁

D.1~1.5岁

E.2~2.5岁

题型:选择题

下列各图所示装置的气密性检查方法,能说明装置漏气的是(  )

A.

B.

C.

D.

题型:选择题

______ the shoes under the bed? [ ]

A. Who's

B. Who're

C. Whose is

D. Whose are

题型:选择题

心室肌收缩瓣膜如何保证血液定向流动?

题型:选择题

MTO装置发生紧急停工时,热工岗应采取哪些措施?

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