【thenumberofforeignstudentsattendingchineseuniversitieshasbeenrisingsteadilysince1997为什么用hasbeen】
2021-12-30 49次 反馈错误 加入收藏 正确率 : 100%
题目内容:
the number of foreign students attending chinese universities has been rising steadily since 1997
为什么用has been
优质解答
过去完成式,而且表示一种状态.不知可否如此解释?
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