11. Although the lesser cornstalk borer is widely distributed, control of them is necessary only in the South. (A) the lesser cornstalk borer is widely distributed, control of them is (B) widely distributed, measures to control the lesser cornstalk borer are (C) widely distributed, lesser cornstalk borer control is (D) the lesser cornstalk borer is widely distributed, measures to control it are (E) it is widely distributed, control of the lesser cornstalk borer is 原答案是D,可是我认为C选项更好些。究竟C有什么问题呢?请指教~ |