请教题。。。非常感谢。。。。。

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82.(28967-!-item-!-188;#058&003792)真确答案为E

Each year companies in the United States

could save as much as $58 billion annually by preventing illness among employees and gain as much as $200 billion through improving performance of workers if they simply provided offices with cleaner air.

(A) annually by preventing illness among employees and gain as much as $200 billion through improving performance of workers if they simply provided

(B) annually if they prevented employee illness and gain as much as $200 billion through worker performance improved by simply providing

(C) annually in employee illness prevention and gain as much as $200 billion through worker performance improved by simply providing

(D) in employee illness prevention and gain as much as $200 billion through improving performance of workers if they simply provided

(E) by preventing illness among employees and gain as much as $200 billion through improved worker performance if they simply provided

86.(29247-!-item-!-188;#058&003883) 正确答案为A

An international team of astronomers working at telescopes in the Canary Islands and Spain has detected at least 18 huge gas spheres estimated to have 5 to 15 times the mass of Jupiter

, the solar system's largest planet.

(A) astronomers working at telescopes in the Canary Islands and Spain

has detected at least 18 huge gas spheres estimated to have 5 to 15 times the mass of Jupiter

(B) astronomers working at telescopes in the Canary Islands and Spain

has detected at least 18 huge gas spheres estimated to be 5 to 15 times Jupiter's mass

(C) astronomers is working at telescopes in the Canary Islands and Spain

, having detected at least 18 huge gas spheres that are estimated at 5 to 15 times the mass of Jupiter

(D) astronomers, working at telescopes in the Canary Islands and Spain

, and has detected at least 18 huge gas spheres estimated at 5 to 15 times the mass of Jupiter

(E) astronomers, working at telescopes in the Canary Islands and Spain, has detected at least 18 huge gas spheres they have estimated to be 5 to 15 times Jupiter's mass

106.(30167-!-item-!-188;#058&004112) 正确答案为C

Officials at the United States Mint believe that the Sacagawea dollar coin will be used more as a substitute for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than four quarters, which weigh 5.67 grams each.

(A) more as a substitute for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than

(B) more as a substitute for four quarters than the dollar bill because it weighs only 8.1 grams, far lighter than

(C) as a substitute for four quarters more than for the dollar bill because it weighs only 8.1 grams, far less than

(D) as a substitute for four quarters more than the dollar bill because its weight of only 8.1 grams is far lighter than it is for

(E) as a substitute more for four quarters rather than for the dollar bill because its weight, only 8.1 grams, is far less than it is for

107.(30213-!-item-!-188;#058&004113)B

Women are expected to be the majority of students entering law school this fall, a trend ultimately placing more women in leadership positions in politics and business.

(A) Women are expected to be the majority of students entering law school this fall, a trend ultimately placing

(B) The majority of students entering law school this fall are expected to be women, a trend that will ultimately place

(C) The majority of students entering law school this fall are expected to be women, which will ultimately place

(D) It is expected that the majority of students entering law school this fall will be women, a trend ultimately placing

(E) It is expected for women to be the majority of students entering law school this fall, which will ultimately place

57.(27481-!-item-!-188;#058&003189)B

The Anasazi settlements at Chaco Canyon

were built on a spectacular scale with more than 75 carefully engineered structures, of up to 600 rooms each, were connected by a complex regional system of roads.

(A) with more than 75 carefully engineered structures, of up to 600 rooms each, were

(B) with more than 75 carefully engineered structures, of up to 600 rooms each,

(C) of more than 75 carefully engineered structures of up to 600 rooms, each that had been

(D) of more than 75 carefully engineered structures of up to 600 rooms and with each

(E) of more than 75 carefully engineered structures of up to 600 rooms each had been

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xiexie

eshopaholic

86题
B.  spheres estimated to be mass 逻辑不对等

C.  spheres that estimated mass  逻辑不对等

D.  and has  and多余

E.  they  指代不明

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非常感谢啊。

踏雪无痕1989

82.(28967-!-item-!-188;#058&003792)真确答案为E







Each year companies in the United States

could save as much as $58 billion annually by preventing illness among employees and gain as much as $200 billion through improving performance of workers if they simply provided offices with cleaner air.





(A) annually by preventing illness among employees and gain as much as $200 billion through improving performance of workers if they simply provided



(B) annually if they prevented employee illness and gain as much as $200 billion through worker performance improved by simply providing



(C) annually in employee illness prevention and gain as much as $200 billion through worker performance improved by simply providing



(D) in employee illness prevention and gain as much as $200 billion through improving performance of workers if they simply provided



(E) by preventing illness among employees and gain as much as $200 billion through improved worker performance if they simply provided


选E是因为，each year 和annually重复，于是干掉ABC
D和E的区别，一个是In，一个是by,
D里面，in是在。。之中，不合原文逻辑
E by preventing 的意思是“通过。。方式”，符合原文想要表达的意思

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这几道题，想问一下为什么。谢谢大家的帮助