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【单选题】
关于卵丘的描述哪项错A.
有成熟卵母细胞
B.
有透明带
C.
有放射冠
D.
外有少量卵泡细胞
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反馈参考答案：
举一反三
【单选题】_____ keep the insects out, she shut the window. [ ]
A.
So as to
B.
In order that
C.
In order to
D.
For
【单选题】In the streets,____________ was a hard job for the traffic police to keep the traffic in order. [ ]
A.
this
B.
it
C.
that
D.
there
【单选题】In order to keep the line moving, customers with lengthy ________ are required to do their banking inside.
A.
transit
B.
transactions
C.
turnover
D.
tempos
【单选题】How do librarians keep books in order?
A.
They arrange the books in alphabetical order.
B.
They put the books into a card catalogue.
C.
They give a number to each book.
D.
They put the books on the shelves.
【简答题】Users need to wipe ______ from the LED in order to keep it working well.
【单选题】They need ______ fear of heavenly retribution to keep them in ______ order.
A.
a; an
B.
the; ×
C.
a; ×
D.
×; ×
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