[讨论]大全418

1.        In the textbook publishing business, the second quarter is historically weak, because revenues are low and marketing expenses are high as companies prepare for the coming school year.DA as的用法·

(A) low and marketing expenses are high as companies prepare

(B) low and their marketing expenses are high as they prepare

(C) low with higher marketing expenses in preparation

(D) low, while marketing expenses are higher to prepare（A）

(E) low, while their marketing expenses are higher in preparation

问题：D哪错了？

while表示对比，
            marketing expenses are high as companies prepare for the coming school year， 这里表达的应该是原因，

因为公司准备下一个学年，所以marketing的花销高。

revenues are low and marketing expenses are high 是并列来说明前面weak的原因。