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【单选题】
在我国粒细胞制品中,中性粒细胞含量应：A.
≥1.0x10 9
B.
≥1.0x10 10
C.
≥ 1.0× 10 11
D.
≥2.5x10 11
E.
≥3.0× 10 11
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【简答题】Nanjing is an old city which lies ________ the Yangtze River.
【单选题】The city of Nanjing is _______ the Yangtze River and Japan is_______ the east of China.
A.
in; on
B.
on; to
C.
off; to
D.
on; in
【单选题】Across the Yangtze River _____ more than one bridge, the Nanjing Changjiang Bridge being the first one.
A.
lay
B.
lie
C.
lies
D.
laid
【判断题】The Nanjing Yangtze River Bridge is the first bridge across the Yangtze River.
A.
正确
B.
错误
【单选题】The Nanjing Yangtze River Bridge is still very strong, ___________ it is almost 43 years old.
A.
although
B.
but
C.
so
D.
because
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