The number of medical schools reached 18 in the early 1990s and ______ around that level since. A.ar...
2022-05-07 08:16:01 43次 2020年普通高等学校招生全国统一考试（天津卷） 英语笔试（第二次） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The number of medical schools reached 18 in the early 1990s and ______ around that level since.
A.are remaining B.have remained
C.is remaining D.has remained
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