关于while的一道题 - ChaseDream

这道题我明白选C，但是有个小语法点很困惑，prep解释说while表示转折，怎么会是转折呢？我觉得while为什么不可以理解成时间状语当。。。。时呢？谢谢各位哦

125. (31137-!-item-!-188;#058&004397)

The computer company registered a $16 million net loss for the year, largely because it was

profitable only overseas, where much of their profits were used for paying higher taxes, while

continuing to lose money in North America.

(A) where much of their profits were used for paying higher taxes, while continuing

(B) where much of their profits went to pay higher taxes, as they continued

(D) with much of their profits going to pay higher taxes, while continuing

(E) with much of the profit used for paying higher taxes, as it continued

这是怎么回事呢？？
111.(30445-!-item-!-188;#058&004235)

Hans Christian Andersen wrote fairy tales, which have been some of the most frequently translated works in literary history, while he wrote plays, novels, poems, and travel books, as well as several autobiographies, which remained almost unknown outside his native Denmark.

(A) Hans Christian Andersen wrote fairy tales, which have been some of the most frequently translated works in literary history, while he wrote plays, novels, poems, and travel books, as well as several autobiographies, which remained

(B) Hans Christian Andersen wrote fairy tales, which, while among the most frequently translated works in literary history, his plays, novels, poems, and travel books, as well as several autobiographies remain

(C) Even as Hans Christian Andersen's fairy tales have been among the most frequently translated works in literary history, still his plays, novels, poems, and travel books, as well as several autobiographies, remain

(D) Unlike the fairy tales written by Hans Christian Andersen, which are some of the most frequently translated works in literary history, he wrote plays, novels, poems, and travel books, as well as several autobiographies, which remained

(E) Although Hans Christian Andersen wrote fairy tales that are among the most frequently translated works in literary history, his plays, novels, poems, and travel books, as well as several autobiographies, remain

97.(29753-!-item-!-188;#058&003991)

Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.

(A) while at the same time they have introduced some 100,000 dangerous chemical pollutants, having

(B) while at the same time introducing some 100,000 dangerous chemical pollutants that have

(D) but introducing some 100,000 dangerous chemical pollutants at the same time that have

(E) but at the same time introducing some 100,000 dangerous chemical pollutants, having

97.(29753-!-item-!-188;#058&003991)

(A) while at the same time they have introduced some 100,000 dangerous chemical pollutants, having

(B) while at the same time introducing some 100,000 dangerous chemical pollutants that have

(D) but introducing some 100,000 dangerous chemical pollutants at the same time that have

(E) but at the same time introducing some 100,000 dangerous chemical pollutants, having