问题补充:
---Do you know the famous scientist Yuan Longping?
---Of course. His namewhenever the matter of hybrid rice(杂交水稻)is discussed.
A. comes out
B. comes up
C. comes in
D. comes on
答案:
A. comes out
(答案→)B. comes up
C. comes in
D. comes on
解析:可联系答.案.网客服索取。