[求助]谢谢大家帮我看看这3道语法题目

以下是引用smilinglan在2003-4-5 15:22:00的发言：
新东方补充材料，谢谢大家帮助！感激不尽！
154 In 1933 the rubber,clothing,and shipbuilding industries put into effect a six-hour workday,(believing it a seeming perment accomodation rather than a temporary expedient for what many observers thought was
)an economy made overproductive by advances in technology.

C  believing it a was not a temporary expendient but a seeming perment accomodation to what many observers thought of as a

D  not as a temporary expedient but as a seemingly permanent accomodation to what many observers thought was
答案是D
我的疑问：
1，C中如果将seeming 改成seemingly 是不是也是正确答案了呢？

2，D中的what many observers thought was 的结构是怎么样的呢？不知道这里做的什么意思，看来是我对what 用法不熟悉，尤其是这里的was 也不知道为何放在这里。

158 Although it claim to delve into political issues,television can be (superfical such as when each of the three major networks )broadcast exactly the same statement from a political candidate.

C  superfical if the three major networks all

E  superfical,as when the three major networks each
答案是E ，我不明白这里as 是做什么用的呢？另外C为什么不对呢？

157 Temporary-employment agencies benefit not only  from the increasing demand for clerical workers but also (the higer profits made when highly paid professionals are placed ,requests for whom )have increased in the recent wave of corporate takeovers.
C  from the requests for highly paid professionals ,who make higher profits for the agencies when placed and whose requests
D  form highly paid professionals,whose placement makes higher profits for the agencies and whose requests
E  form the higher profits made in placing highly paid professionals,request for whom
答案是E

我搞不清楚这个机构是怎么获利的呢？与not only from 并列的为什么是but also from the higher profits,这个地方我不懂。另外想问一下：E中的request for whom 做什么呢？是不是就相当与highly paid professionals's request 呢？谢谢大家帮我看看！

以下是引用Robin在2003-4-5 17:06:00的发言：
154, 如果将seeming 改成seemingly 也是正确答案 (XDF笔记 ：）

以下是引用siebel在2003-4-6 2:24:00的发言：
let me try...

这句考的是such as 和as 用法上的分别。

such as举例，后面不可跟when从句（白勇的理论）。但是在这道题里，需要这么一个例子来证明television can be superficial。怎么办？用as引导。as作为副词，表“就像，比如”。同样的例子：as above, as before, as usual, as well.

as当然可以作代词，但如白勇所说指代前面整个句子实在费解。更何况，如此的话，as在分句里做什么成份成了问题。

以下是引用1stzhang在2003-4-6 10:53:00的发言：
158 Although it claim to delve into political issues,television can be (superfical such as when each of the three major networks )broadcast exactly the same statement from a political candidate.

C  superfical if the three major networks all

这个题目从动词broadcast入手可以只留下C和E两个答案。这个时候就必须比较意思，c用了if，E用的是when，一个表示的是推测，而when表示的是陈述。从原文的让步就可以看出，用推测是不好的,尤其主句用的是"can"。as是adv，when是连词从修饰上讲是没有问题