Dr Yuan Longping grows is called super hybrid rice, has a high output.
A. what; which
B. that; what
C. that; which
D. what; what
网友回答
(答案→)A. what; which
B. that; what
C. that; which
D. what; what
解析：本题考查定语从句和宾语从句。第一个空是宾语从句，引导词作主语用what；第二空是非限制性定语从句，引导词代表super hybrid rice，在从句中作主语，用which。