发动机不易起动,加速发闷,化油器回火,车辆行驶无力,发动机过热,导致发动机工作不正常

题型:单项选择题

问题:

发动机不易起动,加速发闷,化油器回火,车辆行驶无力,发动机过热,导致发动机工作不正常,这属于点火系()的故障现象。

A、点火时间过早

B、点火时间过迟

C、高压火花弱

D、高速不良

考点:汽车修理工考试汽车修理工(中级)汽车修理工(中级)题库
题型:单项选择题

Today I’d like to talk about how to become a (1) . Usually you have to start at the beginning. That is, you have to begin (2) of some sort on a local newspaper, a (3) , maybe on a small magazine -- work (4) . Now there aren’t that many organizations which have large numbers of foreign correspondents so you also have to (5) with that aim (6) . Another way of doing it is to work abroad, and work as (7) . That’s somebody who sells stories, and gets paid (8) , to newspapers and magazines and so on. And hoping to (9) that way, and eventually to be offered a (10) .
I don’t really know (11) are needed, but obviously a degree in modern languages or (12) would be very useful. But, a degree in itself probably wouldn’t (13) . It wouldn’t be enough to get you job. It wouldn’t (14) to make an editor decide to (15) . So it’s difficult to define the (16) . You’re going to need (17) and the ability to assimilate information (18) and then produce stories which (19) of the newspaper or radio or television station you (20) .

题型:单项选择题
阅读下面的短文,完成相关任务。
Dear Sam,
     The weather is wonderful in Hainan, thought (尽管) it is winter now. The air is fresh, the sky is clear
and ①_______. The days are warm and ②______, but the nights are cool and humid. It's a beautiful place
in China.
     I stay at a hotel on the coast (海岸). There is a beautiful ③_______ pool. There is a beach, too. I like
Chinese food. It is delicious. ⑤My room and meals cost ¥200 a day.
     Every day after a ④_______ breakfast, I spend the morning on the beach. Then I go sightseeing, such
as Yalongwan, Luhutou, Tianyahaijiao and so on. After that, I usually sleep for a few hours. Then I read by
the pool and have a cool drink.
     I will come here again next winter. Do you want to come with me?
                                                                                                                                                Love,
                                                                                                                                                Jim
任务一、从方框中选择所给词并用适当形式完成短文中的空白处。

sun       big       blue       swim

1. ①_______ 2. ②_______ 3. ③_______ 4. ④_______
任务二、将⑤处画线句子译成汉语。
5. ___________________________________________________________________
题型:单项选择题

吴菊萍徒手勇救小妞妞,被誉为“最美妈妈”.设妞妞的质量m=10kg,从离地h= 28.5m高的阳台掉下,下落过程中空气阻力约为本身重力的0.4倍;在妞妞开始掉下时,吴菊萍立刻从静止开始匀加速奔跑水平距离s =9m到达楼下,恰好张开双臂在距地面高度为h2=1.5m处接住妞妞,缓冲到地面时速度为零,缓冲过程中的空气阻力不计。g取10m/s2,求:

(1)妞妞在被接到前下落的时间.

(2)吴菊萍跑到楼下时的速度.

(3)在缓冲过程中吴菊萍对妞妞做的功.

题型:单项选择题

—Were you pleased to watch the short story play by Zhao Benshan and Song Dandan at the Spring Festival Evening?

—______ pleased,even excited.

A.More than

B.No more than

C.Not only

D.More or less

题型:单项选择题

下图所示齿轮传动形式为()。

 

 

A、直齿锥齿轮传动

B、螺旋锥齿轮传动

C、双曲面齿轮传动

D、蜗轮传动

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