[求助]蓝皮section 8~9

冒昧回答：

1. Computers are becoming faster, more powerful, and more reliable, and so too are moderns, the devices that allow two or more computers to share information over regular telephone lines.

C. so too moderns, the devices allowing

答案中are的出现是为遵循尽量补出原则么？还是so too有一个固定句型？

and前后是句子并列，要有are。just as...,so too...是固定句型。

2. Because
paper of all kinds is the billets single component of municipal trash,
many municipalities have tried recycling to reduce the cost of wash
disposal.

这是原句，也是答案。是不是原句用现在完成时就是正确的？不然为什么不选B. Because paper
of all kinds is the biggest single componet in municipal trash, many
municipalities tried to recycle so that the cost of trash disposal is
reduced.

B选项：现在时，过去时so that现在时---事态混乱。try sth to do sth.

3.The company is negotiating to sell its profitable credit card subsidiary and plans to use money from that sale to acquire some of the mortgage-servicing operations that are being sold by troubled savings institutions.

B. subsidiary, from which it plans to use money

B是怎么错的？答案中plans与什么并列呢？

plans是动词，与前面的is doing 并列。在读一遍整个句子！

4. In the 1980's the rate of increase of the minority population of the United States was nearly twice what it was in the 1970's.

B. twice as fast as it was in

该项为何错呢？答案中what指代什么呢，twice是adj.what不能充当其宾语啊？

twice what 是固定用法，fast不能修饰百分比的。what指the rate of increase of the minority population of the United States  in the 1970's.

5. As the etched lines on computer memory chips have become thinner and the chips' circuits more complex, the power of both the chips and the electronic devices they drive has vastly increased.

请问为何后句是chips's circuits more complex,而非完整句chips' circuits are more complex.

省略，同一分句中的两个并列句如果谓语相同可省略，完整：As the etched lines on computer memory chips have become thinner and the chips' circuits have become more complex,

6.While the base salary for the top five officers of the company did not chane from 1990 to 1991, cuts were made in such nonsalary compensation as those in allowances for overseas assignments and club memberships.

those为何一定要补出？划线句后内容不是与nonsalary compensation对应么？

这题的答案MM搞错了，应该是(B) cuts were made in such nonsalary compensation as