249.Doctors still know little about how the Listeria bacterium is spread and why the disease it causes, listeriosis, afflicts some people in a contaminated area though it spares many others. (A) though it spares (B) where it spares (C) despite sparing (D) when sparing (E) while sparing
正确答案选E,但我觉得C没有明显错误,请大家指教C错在哪里呢,之前的帖子都查过了,但是都没解释为什么C错... |