为了清楚地表示大气中各种气体所占的百分比,选用( )比较合适. A.统计表 B.

题型:填空题

问题:

为了清楚地表示大气中各种气体所占的百分比,选用(  )比较合适.

A.统计表

B.条形统计图

C.折现统计图

D.扇形统计图

考点:简单的统计表(图)
题型:填空题

配制0.5升0.1mol/LNa2CO3溶液:在天平上称量()克无水Na2CO3放入()中,用适量蒸馏水使其完全溶解。

题型:填空题

阅读下面的文字,完成1~4题。

儿行千里

  我第一次骑单车穿越中国的途中,母亲还不时将一封封家书提前寄到我将到达的地方,好让我每次到达一个陌生的城镇,都会收到家人的问候,它温暖了我一程又一程。每次风尘仆仆地归来时,我的背囊里总塞有一摞沉甸甸的家书。

  在一座乡村,一个农妇的儿子爱上了美丽的贵族少女。备受单相思煎熬的他,做出了离家到庄园主家当花匠的决定。启程的那天,雨丝纷飞。孤独的母亲坐在滴雨的屋檐下目送儿子欢天喜地朝远方的庄园走去,年轻的农夫欢快地走着,他吹着欢快的口哨,始终也没有回过头。

  秋收的一天,他自告奋勇爬上高高的草垛,卖力地干活,因为他心爱的少女正在楼上的阳台注视这里。高傲的少女或许也被这劳动的场面所感染,顽皮地向草垛上的人们伸出了手臂,年轻人踮起脚尖为了握一握少女的纤手,不幸从高高的草垛上跌落摔死。

  母亲闻讯赶来了。与儿子分别已久,万万没有想到会以这种结局重逢。当儿子在村人的嬉笑中下葬的时候,她紧紧地搂住冰冷的儿子,没有一丝抱怨,两行热泪从这位一生倔强从不落泪的农妇的脸庞上滑落。她说:“我的孩子!”

  从小到大看电影无数,许多影片别说情节,就连名字也记不大清楚了,但少年时看过的这部外国影片至今记忆犹新。

  我恰恰是影片中那样一个孩子,疯狂地爱上了去远方的大路。多少年行色匆匆地穿行于中国的地图,拎起行囊道一声:“我去西藏了!”“我去黑龙江了!”头也不回便出了家门,一心直奔目的地。

  直到有一天,我离开院子走了很远,忽然漫不经心地回了一下头的时候,发现年迈的姥姥、两鬓染霜的父母仍然伫立在阳台上,望着我。

  我每次出远门的时候,家人都是这样久久地凝视着我的背影,只是因为我从不回头,所以从不知道。我还不知道,即便我度完周末离家去江对岸的报社上班的时候,他们同样在阳台上目送着我的离去。

  我回头的那一天,第一次向他们扬起了手。我永远记得家人的笑容。

  一年又一年过去了,站在阳台上的亲人一个个离我而去,如今只剩下母亲,以她不变的柔情站在那里。

  1998年我得到去南极中国长城站采访的机会,出发的时候,身为画家一生拿惯了油画笔的母亲为我赶织了一双厚厚的羊毛袜子。当时考察队发的靴子没有女性的尺码,是母亲织的那双厚毛袜才使我的一双脚在男式靴子里没有打晃。在南极大陆的暴风雪中跋涉的时候,冰雪毫不留情地灌进了靴子结成冰坨,也多亏母亲给我的羊毛袜让我的双脚抵御了南极的冰寒。

  四年前我受报社的派遣到海外追访郑和下西洋遗踪,连续三年在印度洋沿线的亚非国家奔波。每次出发的时候,母亲都要帮助我准备行囊。她既担心携带的物品多累坏了我,又担心哪一样物品没带上,路上会诸多不便。于是,放进行囊中的每件物品都要掂量再三。将近七旬的老人了,她甚至还吃力地将沉甸甸的行囊试着背到瘦弱的肩上,体验我将承受的分量。

  我想起了徒步穿越中国的途中倒在罗布泊的余纯顺,他倒下的那年,社会对他的赞颂对他的宣传达到沸点。那年我恰好在上海,他的家乡。经人指点我找到了他的家,上海一条弄堂里一间简陋的房子。屋子虽小,但因为只有他父亲一人而显得空空荡荡。老人低着花白的脑袋正在凝视儿子背着行囊的照片,此刻市内举办的余纯顺徒步中国事迹展览正观者爆满。

  当时正午已过,听说老人还没有吃午饭,我走进厨房发现只有一把青菜,就帮老人煮了一碗清汤面,老人端着碗仍吃不下,他睁着昏花的双眼望着我说:“人们夸倒下的是个英雄,对我这个父亲来讲,死去的是一个儿子啊!”

  我永远记住了那句话,正如我难忘阳台上亲人注视我远去的背影一样。

  有一年的夏天,我遇到一位长年穿行在中国大地的背包族,和我一样被人们称为所谓的“行者”,他拿出一个旅途留言簿希望我在上面写几句话,我说就不用写了吧,有件事你记住就行——在路上常给母亲打个报平安的电话。

1.下列对散文的分析和概括,不正确的两项是(     )

A.本文的主题可以理解为对母爱,对亲情的赞美,呼吁大家要珍惜现在拥有的亲情,有很强的现实意义。

B.“多少年行色匆匆地穿行于中国的地图”一句,运用比喻的手法,成功地刻画了一个志在四方、热衷于工作的青年形象。

C.“一年又一年过去了,站在阳台上的亲人一个个离我而去”一句,写出了作者对故去的亲人在情感上的愧疚,表达了作者对逝去亲情的珍惜和眷恋。

D.本文的细节描写非常成功,例如写母亲吃力地试背沉甸甸的行囊这一细节,就很好地刻画出既平凡又伟大的母爱,让人觉得真切可感。

E.作者直接引用了余纯顺父亲的话,明确地表达了作者对余纯顺行为的不理解,同时也呼吁社会不要盲目地去赞美那些忽略亲情的个人英雄主义行为。

2.文章第2~4段写了作者少年时看过的一部外国影片,试分析这样写的作用。

  ______________________________________________________________

3.举例z分析这篇散文在写作上的主要特色。(要求答出两点)

 ______________________________________________________________

4.有人认为文章最后一段有些多余,应该删去,你认为如何?请结合文本谈谈你的看法。 

 ______________________________________________________________

题型:填空题

阅读理解。

    We've all met with something that slows us down, for example, the bump (颠簸) in the road, the

setback. You just have to keep in mind that a setback is only temporary and greater things lie ahead.

Therefore, keep moving forward, developing what you have, since you've already built a solid foundation

on which you can rely.

     It is easy just to quit, give up and ignore the hard work you have put into something. But we believe in

the "two steps forward, one step back" philosophy (哲学). So how can you react when something

doesn't turn out as you've expected it to be?

     First, be objective. Step back and look at the situation. Is your setback really that significant, or will it

just require a little extra effort? Then, plan your next move. You can ask for help. Don't be afraid o

r ashamed to do this. Frequently, people are more than willing to give you support and advice. You don't

have to be perfect; after all, nobody else is. Next, bounce back. Reevaluate the goals you have set for

yourself at the beginning and retool (改组) them as necessary. Goals should be realistic and specific, but

that doesn't mean they can't be flexible. Instead of looking at your project as a disaster or a failure, view

it with success. Concentrate on how great it will feel after it is finally done, after you have put your all into

it. Instead of focusing on a possible unsatisfactory performance one single time, take a moment to sit back and reward yourself for all that you have accomplished.

     Above all, don't live with regrets. Success is never easy. It remains up to you whether you will give

up, or fight through the tough battles to earn whatever you want. Keep reaching for your goals and you

will achieve them. One small setback is nothing if you really want something and are willing to work for it.

1. According to the passage, the philosophy " two steps forward, one step back" means

    that  ___ when meeting with a setback.

A. we are supposed to quit and ignore the hard work

B. we'd better think it over before making a decision

C. we should stop to think before taking further action

D. we are expected to look at things in an allround way

2.The underlined word "it" in Paragraph 3 refers to________.

A. a performance    

B. a success

C. a goal  

D. a project

3.When suffering a setback,the most important thing to do is________.

A. to keep moving forward to your goals

B. to depend on others' support and advice

C. to sit back and reward yourself for your success

4. What is the passage mainly about?

A. How to avoid the bumps.

B. How to deal with the setbacks.

C. Different attitudes to the setbacks.

D. Different suggestions on your goals.

题型:填空题

输血反应有哪些?

题型:填空题

溃疡性结肠炎又称:

A.慢性结肠炎

B.慢性非特异性结肠炎

C.慢性非特异性溃疡性结肠炎

D.慢性非特异性溃疡性大肠炎

E.慢性溃疡性结肠炎

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