问：大全68题~~~

1.        After the Colonial period’s 50 percent mortality rate, life expectancy improved for children, but as late as the nineteenth century about one child in three died before reaching the age of six.

(A) After the Colonial period’s 50 percent mortality rate, life expectancy improved for children, but

(B) Even though children’s life expectancy, which improved over the Colonial period’s 50 percent mortality rate,

(C) Although life expectancy for children improved after the Colonial period, during which the mortality rate was 50 percent,

(D) While there was an improvement in life expectancy for children after the 50 percent mortality rate of the Colonial period, still（C）

(E) Despite children’s life expectancy improvement from the Colonial period’s 50 percent mortality rate,

答案是C，为什么A和E不可以呢？despite后面加名词作状语不行么？

after the rate怎么可以呢，“在比率之后”，不通呀。

improvement from the rate也是，“从比率起的改善”，不通呀。