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It was about 600 years______that the first clock was made.A、agoB、beforeC、since
It was about 600 years______that the first clock was made.A、agoB、beforeC、since
游客
2025-06-25
18
管理
问题
It was about 600 years______that the first clock was made.
选项
A、ago
B、before
C、since
答案
A
解析
句意:第一个时钟的发明是在600年前。本题考查的是表示时间的引导词。ago在…之前,before在…之后,since自从…。故A正确。
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