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______ for aches, pains and fever, aspirin is now the subject of multiple invest
______ for aches, pains and fever, aspirin is now the subject of multiple invest
游客
2023-11-12
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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
因为long的位置不对,所以B、C选项错,应为:B.Being long used...;C Having long been used...句子前半部分是独立主格结构做状语,故D也不对。由此可见A是惟一正确的选择。
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