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______for aches, pains and fever, aspirin is now the subject of multiple investi
______for aches, pains and fever, aspirin is now the subject of multiple investi
游客
2025-03-18
2
管理
问题
______for aches, pains and fever, aspirin is now the subject of multiple investigations of its role in treating many more serious complaints.
选项
A、Long used
B、Being used long
C、Having been long used
D、It has long been used
答案
A
解析
B、C之所以错,主要是由于long的位置不对,应为:B.Being long used…;C.Having long been used…。句子前半部分是状语,故D也不对。由此可见A是唯一可接受的选择。
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