OG31与233，while问题

31.   Unlike computer skills or other technical skills, there is a disinclination on the part of many people to recognize the degree to which their analytical skills are weak.

(A) Unlike computer skills or other technical skills, there is a disinclination on the part of many people to recognize the degree to which their analytical skills are weak.

(B) Unlike computer skills or other technical skills, which they admit they lack, many people are disinclined to recognize that their analytical skills are weak.

(C) Unlike computer skills or other technical skills, analytical skills bring out a disinclination in many people to recognize that they are weak to a degree.

(D) Many people, willing to admit that they lack computer skills or other technical skills, are disinclined to recognize that their analytical skills are weak.（D）

(E) Many people have a disinclination to recognize the weakness of their analytical skills while willing to admit their lack of computer skills or other technical skills.

OG对E的点评是Have a disinclination is wordy(the verb disinclined is preferred) and, when followed by while willing, creastes an incomplete construction

但是

233.
    Recently implemented “shift-work equations” based on studies of the human sleep cycle have reduced sickness, sleeping on the job, fatigue among shift workers, and have raised production efficiency in various industries.

(A) fatigue among shift workers, and have raised

(B) fatigue among shift workers, and raised

(C) and fatigue among shift workers while raising

(D) lowered fatigue among shift workers, and raised（C）

(E) and fatigue among shift workers was lowered while raising

C怎么就没有“creastes an incomplete construction”呢？

我翻过以前的帖子，番茄笑了说

While引导从句时,如主从句的主语一致,且从句谓语又含有be,则从句主语和be可省略。While后可直接跟现在分词、名词、形容词或介词短语。如:

We are teachers while(we are) serving as students.我们边当老师边当学生。

While引导从句时,如主从句的主语一致,且从句谓语又含有be,则从句主语和be可省略。While后可直接跟现在分词、名词、形容词或介词短语。如:

We are teachers while(we are) serving as students.我们边当老师边当学生。

While引导从句时,如主从句的主语一致,且从句谓语又含有be,则从句主语和be可省略。While后可直接跟现在分词、名词、形容词或介词短语。如:

We are teachers while(we are) serving as students.我们边当老师边当学生。

但是，这里的谓语不是be吧，不然不就变成Recently implemented "shift-work equations" are raising... 了？我觉得应该是have raised才对呀

另外，OG对E的点评是The insertion of was lowered destroys the parallel structure, and thus while raising has no logical referent here

破坏平衡我知道，但是怎么会引起no logical referent的问题的呢？

请牛牛赐教

“no logical referent"可能是由于E中and后面跟一个句子，所以很难判定raising的逻辑主语是fatigue还是“shift-work equations”

其余不太清楚，等nn解释

不是NN，

但是如果把结构改成 and fatigue among shift workers was lowered ，那么这个就成了另一个句子，与前面的部分相脱离——逗号+and引导另一个独立的句子

这样一来,这个句子就是被动语态，不知道主动者是谁，而被while的逻辑主语也就不能得知了。

请指正……