求助新prep1－213

13.
        (31838-!-item-!-188;#058&006170)
        (GWD-3-Q34)

Shoppers in sporting goods stores, unlike in department stores, do very little impulse shopping, not buying a pair of skis and a boomerang when they come in for a basketball, but they leave with a basketball only

A. in department stores, do very little impulse shopping, not buying a pair of skis and a boomerang when they come in for a basketball, but they leave with a basketball only

B. in department stores, shop impulsively very little; someone who comes in for a basketball will leave with a basketball only and not also buy a pair of skis and a boomerang as well

C. those in department stores, do very little impulse shopping, do not buy a pair of skis and a boomerang when they come in for a basketball, but leave with only a basketball

D. those in department stores, do very little impulse shopping; someone who comes in for a basketball will leave with a basketball only and not buy a pair of skis and a boomerang as well

E. department stores, shop impulsively very little; someone will not buy a pair of skis and a boomerang when they come in for a basketball but will leave with only a basketbal

我的问题是，如果我想表达对比地点就是”in sporting goods stores“和”in department stores “对比。应该怎么表达？

就像楼上songlovegt同学所说，介词结构比较都是由 than和as引起的。

as单独使用也可以 引出介词结构比较，但好像gmat题目里，到目前为止只有一种形式。

就是 In A as In B.

另外as单独用法就是这样： A do sth , as do B (时态都可以变，也可以不一致）

                         A is sth, as is B (同上）