It was about 600 years ago （）the first clock with a face and an hour hand was made.
It was about 600 years ago （）the first clock with a face and an hour hand was made.
A、before
B、until
C、that
D、when
正确答案：that
★《布宫号》提醒您：民俗信仰仅供参考，请勿过度迷信！
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