为保证斗轮堆取料时，每个斗轮取煤量一致，必须采用边走边取的运行方式。
参考答案：对
Some government officials in the USA have pointed out that the death of Osama Bin Laden means
keen vigilance (警戒) _____ the end of terrorism. [ ]
A. more than
B. better than
C. other than
D. rather than
