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下列物体质量最接近5×108mg的是( ) A.一头牛 B.一头大象
下列物体质量最接近5×108mg的是( ) A.一头牛 B.一头大象
下列物体质量最接近
5×10
8
m
g
的是(
)
A.
一头牛
B.
一头大象
C.
一只苹果
D.
一辆自行车
答案
A
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