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问题
选择题
下面各数,只读一个零的是( )
A.20600000
B.94000000
C.10600900
D.50220703
答案
答案:
A
选择题
Greenland. _____ land in the world, covers over two million square kilometres.
A. it is the largest
B. that is the largest
C. is the largest
D. the largest
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多项选择题
下列矿物中,()是铁镁矿物。
A.长石
B.角闪石
C.白云母
D.黑云母
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