There is supposed to be a safety ______ which makes it impossible for trains to

游客2024-10-30  10

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 近形近义题。句意:应该有一种使火车不可能相撞的安全装置。本题涉及名词语义上下文理解搭配及语义相关干扰。Aappliance“器具”;B accessory“附件”;Cmachine“机器”;D mechanism装置,如the brake~刹车装置。根据词义和句意,选D 。
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