试题与答案

JZ-7型制动机的自阀手柄移至制动区，而机车起紧急制动作用的原因有哪些？

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题型：问答题 简答题

题目：

JZ-7型制动机的自阀手柄移至制动区，而机车起紧急制动作用的原因有哪些？

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B

考点：铁路机车车辆驾驶人员资格考试DK1制动机DK
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阅读下面材料，根据材料内容判断句子正误(正确用“T”表示，错误用“F”表示)。
    Here are some short messages. Emma got all of them on her mobile
phone yesterday. 
    ● Hey, Emma, I'm going to have a party this weekend. Would you
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     ● Emma, buy some fruits on your way home. Thanks. (From Jessie 13096758113)
( )1. These messages are on Emma's mobile phone.
( )2. Emma can get her computer at 8 :00 p.m.
( )3. Vicky asked Emma to call back.
( )4. If Emma wants to go to the party, she can call at 13823636790.
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