大全433
Intended primarily to stimulate family summer travel, the new airfare, which allows both an adult and a child to fly for the price of one ticket, and also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than fourteen.
(A) and also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than
(B) and also lessens the advance-purchase requirement for family travel to a seven-day minimum from
(C) also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than that of
(D) also lessens the advance-purchase requirement for family travel to a seven-day minimum from
(E) also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than
答案：E。请教下这道题如何区分选C还是选E呢？好晕啊～
这是大全注释的解释：
C有三个错误，首先that指代不清，前面有两个单数名词，requirement和minimum；其次罗索, rather than前后要有平行的内容就行, 这里fourteen清楚的表明是fourteen days, 前面的a minimum of 用that of代替显得多余, 可省；
我认为这里怎么判断，按照句义没有歧义前后对等应该就可以了。
than因为有比较的内容，限制得比较死，必须看清楚比较对象的前后对等和平行。
rather than，看清楚前后平行没有歧义就可以了。
恩，有道理。刚我又查了下前人的帖子，总结了两点：
1）比较的是seven days和forteen days，而不是比较两个minimum。
2）前面和后面的a minimum of重复，没啥必要又不歧义就省了。而且后面forteen days中相同的days都省了，前面没理由不省。
谢谢指教！
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