皮皮学，免费搜题
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【简答题】
We _____ had time to catch the train. The store sells a wide range of _____ appliances. But there never has been such a _____ study to test the theory. The area was covered in _____ jungle. It is a(n) _____ to measure brain activity during sleep.
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皮皮学刷刷变学霸
举一反三
【简答题】vi. 1 appear or become recognized 出现;为...所公认 2 come out of sth. or out from behind sth. 出现;露出
【简答题】出现;为...所公认;出现;露出