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问题详情

A new technique ______, the yields as a whole increased by 20 per cent.

A、)wording out

B、having been worded out

C、)having worded out

D、to have been worded ou

时间：2021-09-01 17:33 关键词：联大三门峡职业技术学院英语读写

答案解析

A

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