下载APP
【多选题】
暴雪、冰雹、结冰、霜冻情况下,场段及现场工班开展以下工作（ ）
A.
现场作业人员注意保暖和人身安全,除特殊情况外,停止高架作业
B.
做好线路融雪、扫雪,接触网和线路除冰等应急准备工作
C.
信号专业人员应及时组织人员清扫车辆段道岔位置积雪
D.
及时将情况汇报设调
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】For the (26) month, mysterious falls of large chunks of ice (冰雹) (27) rained down on Spain and Italy. Juana Sanchez, a 70-year-old woman in Almeria, southern Spain, was knocked (28) when she was struc...
A.
Although eyewitnesses to the phenomenon report that they did not see anything in the sky that could account (44) the ice, scientists had to come up with a rationalization. Professor Jesus Martinez Frias, the geologist investigating the ice falls in Spain, told BBC News that the ice pieces had probably been (45) through sudden temperature drops in the stratosphere. This was the most likely explanation, he said, for the "very unusual" phenomenon.