标题: GWD-11-28语法题 [打印本页] 作者: 甘草野菊 时间: 2010-5-19 21:54 标题: GWD-11-28语法题 In an effort to reduce the number of fires started by cigrarettes, 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.----括号内为划线部分
A. the same 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
