超星 - 29 - 查题吧

单选题

She had _give the doorman a tip in order that he would help her with her suitcase.

A. to
B. on
C. in
D. a

单选题

It was an hour until the ppolice.

A. arrived
B. arrive
C. arriving
D. arriveding

单选题

_did this can'thave been using good judgement.

A. whoever
B. however
C. that
D. who

判断题

The task that he had to deal with seemed impossible,but he was dctemined to succeed.

A. 对
B. 错

判断题

The attack provoked an angry response.

A. 对
B. 错

单选题

炭罐清污电磁阀关闭不严，始终卡滞在开启位置,即使在停车时,高温下燃油箱中的汽油蒸气也会直接进入进气歧管,导致混合气过（）,无法启动。

A. 浓
B. 稀
C. 不变
D. 不定

判断题

凸轮轴比规定的正时有一点延迟时,供油量就会减少。

A. 对
B. 错

判断题

燃烧室积炭过多，汽车停放一夜后,燃烧室积炭处于干燥状态,头两次启动喷的油都被干燥的积炭吸收,第三次启动时积炭已经饱和,才可以顺利启动。

A. 对
B. 错

判断题

热启动汽车吸入的低温空气很少,混合气加浓,被吸进去的都是弥漫在进油口的汽油蒸气,故无法启动。

A. 对
B. 错

判断题

热车难起动,其根本原因是混合气过稀。

A. 对
B. 错

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