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【单选题】
If no signal is sent from the command spot, what will happen to the train?A.
It will stop automatically.
B.
It will move on at the same speed.
C.
It will gradually slow down.
D.
It will keep a safe distance from the other trains.
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举一反三
【多选题】割灌机在操作前需要作哪些检查
A.
检查割灌机各部件的螺丝和螺母是否松动，如有松动应拧紧
B.
工作区域有无石头、金属物体
C.
检查刀片的安装螺丝是否紧固，刀片是否有缺口、裂痕、弯曲等现象
D.
检查打草头上的尼龙绳是否在15厘米以内
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【简答题】A.They were frightened and distressed. B.They swam away when the speaker was turned on. C.They swam closer to 'examine' the speaker when it was turned off. D.They didnt seem to be frightened and kept ...
【单选题】His request for a day off ______ by the manager of the company.
A.
was turned off
B.
was turned down
C.
was put down
D.
was put away
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