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【简答题】
简述脑膜炎菌的标本送检要求和培养特点。
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举一反三
【简答题】已知tan ='2,' 则 的值为 。
【单选题】When did all these cars invade it? (Para.17)
A.
When did all these cars come into the street?
B.
When did all these cars attack the garden?
C.
When did all these cars come into the garden?
【简答题】已知 ，则 的值为（ ） 0 2 1
【单选题】To deliver a story, you should do all of the following EXCEPT______
A.
capturing the audience's attention fight at the beginning.
B.
making as few gestures as possible.
C.
appealing to the audience' s sense of sight.
D.
monitoring feedback from the audience.
【简答题】已知 ，则sin2θ的值为（ ）．
【单选题】Almost ______ substances expand in volume when heated and contract when cooled.
A.
all
B.
they all
C.
all of
D.
all are
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