语法分析--选择正确的项填空--containing--that contain
Drinking water.excessive amounts of fluorides may leave a stained or mottled effect on the enamel of teeth.
人气:473 ℃ 时间:2020-02-03 13:40:07
解答
填containing,后置定语,修饰drinking water,“含有”过量氟化物的饮用水
有A、B、C选项吗?为什么我没看到
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