地球与太阳的平均距离大约为150000000km.将150000000用科学记数法表示

地球与太阳的平均距离大约为150000000km.将150000000用科学记数法表示应为(  )

A15×107  B1.5×108 C1.5×109 D0.15×109

答案

B

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