【单选题】【消耗次数：1】
若火花塞的表面有大量的汽油，气缸中有被油“淹住”的现象时，此时正确的做法是：
①
停止对发动机的供油并长期放置汽车
②
应将全部火花塞拆掉，断掉喷油器的控制电路，将节气门全开，起动发动机几次
③
打开气缸盖进行清理
④
以上都不对
参考答案：
复制
纠错
相关题目
【简答题】
节气门全开时的发动机转速特性曲线称为发动机[填空]曲线，可表征汽车的[填空]性。
【简答题】
节气门部分开启时的发动机转速特性曲线称为发动机[填空]曲线，可表征汽车的[填空]。
随机题目
【单选题】
This is a river closely ___________ to the lives of the people of the city.
①
joined
②
exposed
③
affected
④
related
【单选题】
JTL Company will ________ our business of bicycle sales in the country.
①
set out
②
put up
③
call for
④
take over
【单选题】
Five minutes earlier, __________ we could have caught the last train.
①
and
②
or
③
so
④
but
【单选题】
, the sales manager began his report with the statistics of last month’s sales.
①
By now
②
As usual
③
So far
④
At most
【单选题】
Can I help you with your suitcase?
①
I have no idea
②
No, no. I can carry it myself
③
That’s a good idea
④
Thank you. I can manage myself
【单选题】
Please call us for more information as our website is currently construction.
①
under
②
by
③
of
④
with
【单选题】
They talked in whispers, but still, I couldn’t help but __________ their conversation.
①
overhear
②
to overhear
③
overhearing
④
overheard
【单选题】
Oh, I’m sorry. But I promise I’ll be careful next time.
①
It’s nothing at all
②
Oh, never min
③
It doesn’t matter
④
Thank you
⑤
There are no questions
【单选题】
Not only are cars involved in most of the traffic accidents, but they also __________to the pollution of the air. .
①
contribute
②
promote
③
refer
④
matter