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【判断题】
《雷雨》的主人公是繁漪A.
正确
B.
错误
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举一反三
【单选题】Two identical slides in air are illuminated with monochromatic light. The slides are exactly parallel, and the top slide is moving slowly upward. What do you see in top view? 1. all black 2. all brigh...
A.
1
B.
2
C.
3
D.
4
E.
5
【单选题】When and where to enjoy our summer vacation _____ yet. [ ]
A.
aren't decided
B.
isn't being decided
C.
hasn't been decided
D.
haven't been decided
【简答题】The
worker decided to finish the work on ____.A. contact B. schedule C. stress D. staff
【单选题】把外科无菌操作的概念和方法引入动物细胞体外组织培养法的科学家是( )。 A . B . C . D .
A.
Earle
B.
Harrison
C.
Carrel
D.
Gurdon
【单选题】Monochromatic light shines on a pair of identical glass microscope slides that form a very narrow wedge. The top surface of the upper slide and the bottom surface of the lower slide have special coati...
A.
1
B.
2
【单选题】The worker decided to finish the work on ____.
A.
contact
B.
schedule
C.
stress
D.
staff
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