help,OG的几道题目

以下是引用祈晴坊主在2003-7-9 21:11:00的发言：
160. While some propose to combat widespread illegal copying of computer programs by attempting to change people's attitudes toward pirating, others by suggesting reducing software prices to decrease the incentive for pirating, and still others by calling for the prosecution of those who copy software illegally.
(A) by suggesting reducing software prices to decrease the incentive for pirating, and still others by calling
(B) by suggesting the reduction of software prices to decrease the incentive for pirating, and still others call
(C) suggest the reduction of software prices for decreasing the incentive for pirating, and still others call
(D) suggest the reduction of software prices to decrease the incentive for pirating, and still others by calling
(E) suggest reducing software prices to decrease the incentive for pirating, and still others are calling

它的解释是：
Choice E, the best answer, uses constructions that are parallel to some propose', others suggest. . . , and still others are calling ....
Choices C and D correctly begin the second part of the parallel by using suggest. Choice C, however, introduces the nonidiomatic for decreasing, which creates some difficulty in meaning. Choice D loses parallel construction in the third part by shifting to by calling.


我觉得E的并列成分不是不一样的吗
为什么C的for  就不可以了呢
……to decrease
和……for decreasing 有什么区别？

以下是引用祈晴坊主在2003-7-9 21:16:00的发言：
170. Although early soap operas were first aired on evening radio in the 1920's, they had moved to the daytime hours of the 1930's when the evening schedule became crowded with comedians and variety shows.
(A) were first aired on evening radio in the 1920's, they had moved to the daytime hours of the 1930's
(B) were first aired on evening radio in the 1920's, they were moved to the daytime hours in the 1930's
(C) were aired first on evening radio in the 1920's, moving to the daytime hours in the 1930's
(D) were aired first in the evening on 1920's radio, they moved to the daytime hours of the 1930's
(E) aired on evening radio first in the 1920's, they were moved to the 1930's in the daytime hours

答案是B
我想问下
如果把B中的 aired 和first 换个位置，意思会不会变的

以下是引用tocean0222在2003-7-9 23:02:00的发言：
171、因为so as前面出现了2个人名，所以无法判断谁is to marry；不能用常识解题，要找题目得error;

以下是引用祈晴坊主在2003-7-9 21:21:00的发言：
171. In 1527 King Henry VIII sought to have his marriage to Queen Catherine annulled so as to marry Anne Boleyn.
(A) so as to marry
(B) and so could be married to
(C) to be married to
(D) so that he could marry
(E) in order that he would marry

答案是D，它说Awkward and imprecise, A does not specify who is to marry Anne.
可是我不觉得A有歧义啊，总不可能是女的去marry女的吧

谢谢