()一般不会使齿轮泵工作噪声增大。A.发生困油现象 B.吸入管漏气 C.齿轮端面间隙

题型:单项选择题

问题:

()一般不会使齿轮泵工作噪声增大。

A.发生困油现象

B.吸入管漏气

C.齿轮端面间隙大

D.轴承损坏

考点:海船船员考试齿轮泵齿轮泵题库
题型:单项选择题

   我们的老师   

 [意]阿米琪斯

       今天上午上完课,我开始喜欢我们的新老师了。我们走进教室时,新老师坐在讲台的座位上。他去年教过的一些学生不时地来向他问好。他们来来往往,脑袋从教室门口伸进来,跟他打招呼:   

      “您好,老师先生!”“您好,帕尔博尼先生!”有的同学走进教室,先是摸摸他的手, 然后又匆忙地走出去。可见,大家都爱戴(dài)他,都愿意跟他在一起。他回答学生们:“大家好!”他跟学生握手时,眼睛并不看他们。学生们跟他打招呼,他表情(严肃 严格) 认真,额头那道笔直的皱纹显而易见。他的脸转向窗户,眼睛直望着对面的屋顶,好像跟学生打招呼是件不愉快的事情。他一个个打量我们一番,就叫我们做听写练习。他边念, 边从讲台上走下来,在课桌中间踱(duó)来踱去。他看到一个学生的脸上长着红疱(pao) 疹(zhěn),就停止默写,两手托着他的脑袋细心查看,然后问他怎么不(舒展  舒服), 是什么病,还用手摸摸他的前额看有没有发烧。这时候,老师身后一个学生突如其来地跳到课桌上,扮起鬼脸来,老师突然转过身去,他便赶紧跳下课桌,一屁股重新坐到座位上,害怕得一声不吭,低头等候老师的(处理  处罚)。老师抚摸着他的脑袋说:“以后再不能这样了!”别的话什么也没说。老师回到讲台上,继续给我们做听写练习。做完听写,他默默地扫视我们片刻,用那高大的而洪亮的声音,慢条斯理地对我们说:“同学们,我们将在一起相处一年,我们要十分珍惜这一年。你们要好好用功,做到品学兼(jiān)优,我已没有家庭了,你们就是我的亲人。我母亲去年去世,只有我一个人了。在这个世界上,除了你们,我再没有别的亲人。再也没有别人对我钟爱了,没有什么可思念的了。你们就是我的孩子,我真心实意地爱你们,也(愿望  希望)得到你们的爱。我不想处罚任何人,请你们向我表明你们的颗颗真心。我们的班级将是一个大家庭,你们就是我的慰(wèi)藉(jiè)和骄傲。我不要你们做口头上的许诺,事实上,在你们的灵魂深处,我深信你们已做出了肯定的回答,我要谢谢你们了。”这时候,工友来通知说放学的时间到了,我们都一声不响地离开座位。那个站到课桌上的孩子走到老师跟前,用颤(chàn)抖(dǒu)的声音说:    

      “老师先生,请原谅我吧!” 

       教师亲吻了一下他的前额说: 

     “回去吧,我的孩子。”

1.用“√”选择括号内恰当的词语。

2.写出下列词语的反义词。

     愉快—(   ) 害怕—(   )  颤抖—(   ) 

3.文中从哪里体现出新老师对学生的爱?  

     ___________________________________________________________________________

4.作者笔下的新老师是一个怎样的人?   

     ___________________________________________________________________________

5.在你的学习生活中,你最喜欢哪位老师?请你写出原因。

     ____________________________________________________________________________

题型:单项选择题

Japanese couples,too busy for a normal social life,are increasingly turning to actors to play their friends on the most important days of their lives.

Several agencies have sprung up (涌现) offering actors to attend weddings or even funerals.The first guest-for-hire company was established about nine years ago and around 10 now send out dozens of pretend friends to family events.

Agencies such as Hagemashi Tai —— which means “I want to cheer you up” —— charge around £100 for each “guest”.Other services such as giving a speech in praise of a bride or the groom cost extra.

The appearance of the small fake friends industry has been linked to social and economic changes in Japan.With lifetime employment (终身雇佣制) a thing of the past,couples feel uncomfortable about inviting work colleagues to their wedding.Increasingly busy and stressed out,many Japanese surround themselves with only a very small circle of friends.

When they marry,however,they are under pressure to match the number of their new partner’s wedding guests.Office Agents,the largest provider of pretend friends,makes sure that its employees have done their homework and know all about the bride or groom before the wedding.

Hiroshi Mizutani,the company’s founder,said the fake friends he provides must look happy,be well dressed and look like people with good jobs.

小题1:Why did fake friends industry come into being in Japan?

A.Because of social and economic changes.

B.Because of lifetime employment.

C.Because of normal social life.

D.Because of work pressure..小题2:Pretend friends will be present on the following occasions except __________ .

A.weddings

B.funerals

C.work

D.family gathering小题3:The agents make sure that fake friends __________ .

A.have done their housework

B.have good jobs

C.must look happy and be well dressed

D.feel uncomfortable小题4:What is the main idea of this passage?

A.Japanese couples are under pressure to get married.

B.The first guest-for-hire company in Japan started.

C.Japanese couples’ social life is boring.

D.Japanese couples rely on fake friends.

题型:单项选择题

一个线性调节器的稳定性(稳定或不稳定)取决于()

A、干扰作用的形式及强弱

B、系统本身的结构及参数

C、干扰作用的形式,强弱和系统本身的结构和参数

题型:单项选择题

所谓 “裸机”是指( )。

A.单片机

B.单板机

C.不装备任何软件的计算机

D.只装备操作系统的计算机

题型:单项选择题

立体仓库的自动控制方式有()。

A.自动存取式

B.集中式

C.分离式

D.分布式

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