以下是引用taixiKim在2009-2-7 1:13:00的发言:TTGWD11-Q29: As Charles Darwin observed, natural selection operates whenever individuals of one genetic composition are better at reproducing than that of others. A. that of others D. those of another (D)
Why not A? 把这句话完全还原: As CD observed, natural selection operates whenever individuals of one genetic compostion are better at reproducing than individuals of another genetic composition are. 因为这个better than的比较是在状语从句whenever...里面的,所以比较的两个对象也跑不出whenever这个范围。that如果指代natural selection的话意思错误。 |