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问题详情

Since 1780, when the town’s first hat factory ______ in Danbury, Connecticut, the town has been a center for hat manufacturing in the United States.

A、were established

B、was establishing

C、had been established

D、was established

时间：2021-09-01 23:40 关键词：青书学堂大连工业大学大学英语3

答案解析

D

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