标题: GWD里一道语法题 求解 [打印本页] 作者: DebugXY222 时间: 2016-8-11 11:33 标题: GWD里一道语法题 求解 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.
in which thin layers of extra paper are used to decrease the amount of oxygen entering the cigarette, thereby slowing
in which they use thin layers of extra paper in decreasing the amount of oxygen entering the cigarette, which slows
that uses thin layers of extra paper to decrease the amount of oxygen when it enters the cigarette, thereby slowing
for which thin layers of extra paper are used to decrease the amount of oxygen that enters the cigarette, and thereby slowing
using thin layers of extra paper in decreasing the amount of oxygen entering the cigarette, which slows