安全阀应铅直地安装在()。A、容器的高压进口管道上 B、管道接头前 C、容器与管道之

来源:www.tikuol.com 发布时间:2017-07-29 03:52
题型:单项选择题

问题:

安全阀应铅直地安装在()。

A、容器的高压进口管道上

B、管道接头前

C、容器与管道之间

D、气相界面位置上

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题型:选择题

纯种红花紫茉莉(RR)与纯种白花紫茉莉(rr)杂交得F1,取F1的花药进行离体培养,然后使幼苗染色体加倍得F2,F2的基因型及比例是 [ ]

A.RR:rr=1:1

B.RR:rr=3:1

C.Rr:rr=1:1

D.RR:Rr:rr=1:2:1

题型:完形填空

完形填空:

20090521

 
My ears are recently full of joyous remarks from my friends such as, “Oh, Beckham is so handsome, so cool, that I can’t help falling in love with him!” Or “What perfect skills he has!” Yeah, I agree   36   some degree, though I sometimes do want to ask them how much they  37     Beckham, apart from his appearance and how much they know about football   38   scoring goals. It seems funny that we are crazy for things, with which we are unfamiliar or   39    which we are uncertain, but we all, my friends   40   I, consider this one of life’s 41  .

We need these pleasures to brighten up our lives. But that doesn’t amount to craziness  42   nonsense(胡闹). As an old saying   43    : “Don’t judge a book by its cover.” We should not   44  anything from its appearance. We should all know, it is one’s good character and great contribution that   45   one a star and unforgettable. Therefore we’d better say   46   about Beckham’s good looks.
If we close our eyes,   47  in deep thought, we can find that the things that   48   us to be in truth happy, sad or touched   49   a clear meaning. If we don’t go deeper and just satisfied with superficial(表面的)things,  50   we will find that we have not really gained anything  51  our first impression has blinded and misled us, and we’ll remain ignorant(无知)  52   we realize that and make some changes.
It is believed that thinking and going deeper than before is a sign of great   53  . If one day we are willing to go deeper into everything, no matter how much it   54   us, we will finally prove how much we have grown up, how much more sensible(理智的), mature(成熟的), and intelligent we have   55  .
36.A.to        B.on       C.in        D.at
37.A.learn from      B.learn C.know       D.know about
38.A.rather than      B.except for       C.except      D.apart from
39.A.with      B.in      C.about       D.for
40.A.not        B.as well as C.rather than       D.but
41.A.pleasures B.taste     C.sorrow      D.regrets
42.A.nor        B.and      C.or        D.or else
43.A.speaks     B.talks        C.tells     D.goes
44.A.take       B.judge       C.accept      D.conclude
45.A.makes      B.causes      C.builds      D.create
46.A.better      B.more     C.worse       D.less
47.A.taking      B.leaving     C.falling     D.getting
48.A.move       B.change   C.doubt     D.follow
49.A.lack      B.have        C.include    D.cover
50.A.in fact     B.indeed     C.in a while        D.sooner or later
51.A.so       B.even though    C.because    D.although
52.A.even if     B.although C.unless      D.if
53.A.joy      B.progress   C.effort       D.work
54.A.cares      B.pains       C.delights    D.minds
55.A.come       B.made       C.had        D.become
题型:问答题

简述电子轨道衡的工作原理?

题型:单项选择题

机电标准化岗位规范要求现场发现有一起“三违”情况,则“规范作业”部分()。

A、不得分

B、扣一分

C、扣二分

题型:单项选择题

医学的道德性集中体现在()中。

A.道德性

B.人文精神

C.科学性

D.医德