高炉中的硫主要来自（），其次是喷吹煤粉和、矿石（烧结矿）。
参考答案：焦炭
— How much is the ticket to the West Lake ?
—A one way ticket ＄40,and you can spend another ＄20 for a round—trip.
A. pays B. costs C. takes
Hardly could he _____ this amount of work in such a short time. [ ]
A. get through
B. get off
C. get into
D. get down
