Do you know that Yuan Longping is known as ______ father of hybrid rice (杂交水稻)?
A./ | B.the | C.a | D.an |
相关知识点
推荐套卷
Do you know that Yuan Longping is known as ______ father of hybrid rice (杂交水稻)?
A./ | B.the | C.a | D.an |