[問題] PP1-111和PP2-12中的while用法

看板GMAT (GMAT入學考試)作者waterdrop (林)時間16年前 (2008/10/08 06:07)推噓2(2推 0噓 2→)

留言4則, 3人參與討論串1/1

想請教各位在PP1#130中while和at the same time連用是對的但是PP#12中卻說while和simultaneously語義上重複對我而言at the same time跟simulraneously是差不多的意思啊可以幫我解釋一下嗎感恩 130. (31416-!-item-!-188;#058&004490) 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 (C) while they have introduced some 100,000 dangerous chemical pollutants at the same time, and have (D) but introducing some 100,000 dangerous chemical pollutants at the same time that have (E) but at the same time introduce some 100,000 dangerous chemical pollutants, having 正解是B 12. (25105-!-item-!-188;#058&002139) Performing a risky maneuver that required precision flying, not only did space shuttle astronauts retrieve an orbiting satellite, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it was done simultaneously while avoiding being rear-ended by ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a passing ultraviolet telescope. (A) not only did space shuttle astronauts retrieve an orbiting satellite, it was done simultaneously while avoiding (B) not only was an orbiting satellite retrieved by space shuttle astronauts, but they also simultaneously avoided (C) an orbiting satellite was retrieved by space shuttle astronauts who also avoided simultaneously (D) space shuttle astronauts retrieved an orbiting satellite, simultaneously while avoiding (E) space shuttle astronauts retrieved an orbiting satellite and simultaneously avoided 正解是E -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.138.33.87 ※ 編輯: waterdrop 來自: 220.138.33.87 (10/08 14:08)