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题目内容
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Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
(27)
A．One of the bridges between North and South London collapsed.
B．The heart of London was flooded.
C．An emergency exercise was conducted.
D．100 people in the suburbs were drowned.
更多“Section BDirections: In this section, you will hear 3 short passages. At the end of each p”相关的问题
第3题
在轿门上装有（），当电梯关门碰到人或物阻碍关门时，装置动作，使门重新开启。
A.停止装置
B.超载保护装置
C.防夹安全保护装置
D.断带保护
第5题
电梯轿厢门的安全装置如光电保护等，当门关闭过程中碰触到人或物时，门应重新开启。（）
A.正确；
B.错误
第7题
A.按关门按钮不能自动关门
B.轿厢运行时有异常噪声
C.开、关门时，冲击声过大
D.在基站厅外扭动开关门钥匙，开关不能开启厅门
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