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Dr Yuan Longping grows _____ is called super hybrid rice, _____ has a high output.

A. what; which B. that; what

C. that; which D. what; that

A

【解析】试题分析:考查定语从句。前一个为定语从句缺主语,用what领导,后一个为非限制性定语从句,缺主语,that是不能领导非限制性定语从句的,句意:袁隆平种植了杂交水稻,它有很高的产量,故选A

考点:考查定语从句

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