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the small story-book is about 50( )括号中应填kg中系g?

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the small story-book is about 50( )括号中应填kg中系g?
the small story-book is about 50( )括号中应填kg中系g?
应填g
书大约50克,人的体重大约50千克
再问: ususlly my father drives 70( )per hour on highway. an elephant can be 400( )tall and 10( ) the great basketball player, Yao Ming is 2.23( )tall 词:cm,m,km,ton。
再答: Ususlly my father drives 70( km )per hour on highway. An elephant can be 400( cm )tall and 10( ton ) The great basketball player, Yao Ming is 2.23( m )tall