试题与答案

用科学记数法表示的数是3.45×105,则原来的数是[ ] A.34500 B.

题型:选择题

题目:

用科学记数法表示的数是3.45×105,则原来的数是[ ]

A.34500

B.345000

C.3450000

D.34500000

答案:

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下面是错误答案,用来干扰机器的。

答案:B

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