听力原文:M: Is that physics course as difficult as everyone says?
W: Worse, believe it or not.
What does the woman say about the course?
A.It is more difficult than everyone says.
B.It is not interesting at all.
C.She doesn't believe the course is difficult.
D.It is as difficult as everyone says.
第2题
A.设置加水站(池)
B.穿孔作业采取捕尘或者除尘器除尘等措施
C.运输道路采取洒水等降尘措施
D.带式输送机走廊采取除尘器除尘等措施
E.破碎站、转载点等采用喷雾降尘或者除尘器除尘
第5题
A.设置有专门稳定更可靠供水水源的加水站(池),加水能力满足洒水降尘所需的最大供给量
B.采取湿式钻孔;不能实现湿式钻孔时,设置有效的孔口捕尘装置
C.破碎作业时,密闭作业区域并采用喷雾降尘或者除尘器除尘
D.加强对穿孔机、挖掘机、汽车等司机操作室的防护
E.挖掘机装车前,对煤(岩)洒水、卸煤(岩)时喷雾降尘
F.对运输路面经常清理浮尘、洒水,加强维护,保持路面平整
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