你好：为你提供精确解答
整体的一部分用单数形式.
故选【B】
谢谢,不懂可追问~~~~~·
70% of our bodies()water,and three quarters of the earth()covered with water a.are is b.is is
70% of our bodies()water,and three quarters of the earth()covered with water a.are is b.is is
选哪个?为什么?
选哪个?为什么?
英语人气：767 ℃时间：2019-11-21 05:55:04
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