请教og11-30 关于不可数名词前面是否可以加a/an的问题

张大猴

90 days sales 90 days sales is as much as even the strogest business carry, and then only as a way to anticipate higher prices or ensure against shortages.

(A) as much as even

(B) so much as even

(C)even so much as

(D)even as much that

(E)even as much that

答案是A。我的问题是inventory做“存货量”讲的话时不可数名词，这也能解释为什么后面是much，但是白勇语法上讲不可数名词前面不能加a和an啊。。。怎么回事啊

张大猴

不好意思我打错了

An inventory equaul to  90 days sales is as much as even the strogest business carry, and then only as a way to anticipate higher prices or ensure against shortages.

sayysong

lz看花眼了吧，哪里有inventory，只有shortages。
后面只看到一个 as a way to ... 里面的 a 没有问题的。
lz再确认一下吧。