试题与答案

我国以2010年11月1日零时为标准时点进行了第六次全国人口普查, 全国总人口为

题型:选择题

题目:

我国以2010年11月1日零时为标准时点进行了第六次全国人口普查, 全国总人口为

1339724852人.其中1339724852人用科学记数法(保留三位有效数字)可表示为(  ).

A.1.34×109

B.1.33×109

C.1.34×108

D.1.33×108

答案:

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