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The company has been producing this model of machine tool______2008.A、sinceB、af
The company has been producing this model of machine tool______2008.A、sinceB、af
游客
2023-09-30
27
管理
问题
The company has been producing this model of machine tool______2008.
选项
A、since
B、after
C、for
D、before
答案
A
解析
本题考查表时间的介词短语与时态的搭配使用。本句为现在完成进行时，强调一直在做某事。since后面接表示过去时间的短语或从句表示从过去某个时间以来一直在做某事，故A)为本题的答案。
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