请教一道题 GWD3-Q34

GWD3-Q34:为什么不是C? C到底错在哪里呢？

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 basketball

我只见过do，连词+do。。。

和do。。。，do。。。，and do。。。

请教NN!!!!

D选项什么意思，那个分号用来做什么，后面的someone呢？就是为了重述前面的主语么？？？？

这是个什么结构？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？

恳请解答！！！！！

只找到这一个帖子！！！！！

从逻辑上看，D比C更好（同时D在语法结构上也更合理）：

C 中 “do not buy a pair of skis and a boomerang when they come in for a basketball, but leave with only a basketball” 是一个完整的意思，是用来举例解释 “do very little impulse shopping”, 如果这2个do像C选项这样并列，就表现不出这中逻辑关系了，而且从语法上看，do ... do ... but do...也不合理。

相对来说，D更合理：来买篮球的人就带一篮球走了，不会再买一对雪橇和飞镖；而后面这句是给前面的句子“those in sporting stories do very little impulse shopping" 举的例子。

但是我对于D中not buy后用and ... as well有保留意见，我理解是在否定句中用or替代and啊。不过D比其他选项相对来说更合理一些。

平行优先。

总体来说，D答案分号前后平衡，用两个分开的句子来描述一个现象。

而C来说，头重脚轻。前头说了那么多，然后一个but加几个单词完事。