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There is supposed to be a safety _______ which makes it impossible for trains to
There is supposed to be a safety _______ which makes it impossible for trains to
游客
2024-05-23
11
管理
问题
There is supposed to be a safety _______ which makes it impossible for trains to collide.
选项
A、appliance
B、accessory
C、machine
D、mechanism
答案
D
解析
近义名词辨析。A. appliance器具,电器,(独立而能单独使用的)小装置;B.accessory附件,配件,饰品;C.machine机器;D.mechanism(复杂的,作为大机器上一部分的)装置,机械装置。根据题意应选D。句意为:应该有一种安全装置使火车不能相撞。
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