求助GWD11-28 没有搜索到这题哦 大家来帮忙看看吧

cartier921

求助GWD11-28

In an effort to reduce the number of fires started by cigarettes, a major tobacco company is test-marketing a cigarette in which thin layers of extra paper are used to decrease the amount of oxygen entering the cigarette, thereby slowing the rate at which it burns and lowering the heat it generates.



A. in which thin layers of extra paper are used to decrease the amount of oxygen entering the cigarette, thereby slowing

B. in which they use thin layers of extra paper in decreasing the amount of oxygen entering the cigarette, which slows

C. that uses thin layers of extra paper to decrease the amount of oxygen when it enters the cigarette, thereby slowing

D. for which thin layers of extra paper are used to decrease the amount of oxygen that enters the cigarette, and thereby slowing

E. using thin layers of extra paper in decreasing the amount of oxygen entering the cigarette, which slows
答案是A
我想请问下BCDE分别错在什么地方呢？谢谢

582640853

C选项的IT 不就是是指前面的oxygen 吗？

582640853

C选项的问题可能是use 主语的问题。use 的主语应该是company，不是cigarette