问题描述：
一道初三英语按正确形式填空的题.
In 1973,Yuan Longping succeeded in the _____(develop)of hydrid rice
并讲明原因,
但是我觉得= = 后面的the ____ of hydrid rice应该是一个词组吧= =
In 1973,Yuan Longping succeeded in the _____(develop)of hydrid rice
并讲明原因,
但是我觉得= = 后面的the ____ of hydrid rice应该是一个词组吧= =
问题解答：
我来补答展开全文阅读