[求助]GWD-2-41 没找到讨论，另求助as...as用法

Q41:

Retailers reported moderate gains in their November sales, as much because of their sales of a year earlier being so bad as that
                    shoppers were getting a head start on buying their holiday gifts.

1. of their sales of a year earlier being so bad as that
2. of their sales a year earlier having been as bad as because
3. of their sales a year earlier being as bad as because
4. their sales a year earlier had been so bad as because
5. their sales of a year earlier were as bad as that

答案D

A、B、C选项较好排除，可是对于D、E这里面的结构是：as much because of .....as because...吗？

关于as...as有这样的用法么？as.....as的用法都有哪些呢？求教

那就是说：结构是as much because  .....as because...？

as ... as用法是什么呀？