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
ans:A
我選C
in which不是等於where嗎？
用在這裡對嗎？
用一個that不是更快
請版上大大 指教一下
