沉淀硫磺
参考答案：28020000
一列火车以25m/s的速度匀速前进，某一时刻路过如图所示的路标。
求：(1)火车还要多长时间才能到达泰州？
(2)若该火车完全通过一条长2800m的隧道需要用时120s.求火车的长度．
Although he _______ the danger to his own health, he found it difficult to quit smoking.
A．was very aware of
B．well awared of
C．was well aware of
D．very awared of
