下列换算不正确的是( )_刷题宝

题干

下列换算不正确的是( )

A：

38cm=38cm×0.01m=0.38m

B：38km=38×1000m=3.8×10⁴m

C：38m=38×10⁹nm=3.8×10¹⁰nm

D：38μm=38×10^-9km=3.8×10^-8km

上一题下一题 0.0难度选择题更新时间:2015-06-23 05:00:35

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A

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