维持胸膜腔内负压的必要条件是() A.呼吸道存在阻力 B.胸膜腔密闭 C.胸膜腔内有

题型:单项选择题 A1型题

问题:

维持胸膜腔内负压的必要条件是()

A.呼吸道存在阻力

B.胸膜腔密闭

C.胸膜腔内有少量浆液

D.肺内压低于大气压

E.吸气肌收缩

考点:公卫执业医师呼吸呼吸题库
题型:单项选择题 A1型题

矿井空气来源于地面,它的主要成分有氮气、氧气和()。

题型:单项选择题 A1型题

(8分)阅读下列材料,回答下列问题。

材料一 我因某城市建成区示意图。

材料二 该城市3个年份不同方向的建成区面积图。

材料三 不同时期该地河流在等量降水过后形成的洪水过程线。

(1)据材料一、二分析,1988年以来,该城市主要向________和________扩展,影响其扩展的主导因素是________ 。(3分)

(2)材料三中,最能反映该地2007年的河流洪水流量过程线是________。该流量过程线的观测点应是材料一图中的________ (甲、乙)。(2分)

(3)M区为该城市的重化工业园区,分析其布局的合理性。(3分)

题型:单项选择题 A1型题

阅读下面的文言文,完成下面各题。(18分)

贺进士王参元失火

柳宗元

得杨八书,知足下遇火灾,家无余储。仆始闻而骇,中而疑,终乃大喜,盖将吊而更以贺也。道远言略,犹未能究知其状,果若荡焉泯焉而悉无有,乃吾所以尤贺者也。

足下勤奉养,乐朝夕,惟恬安无事是望也。今乃有焚炀赫烈之虞,以震骇左右,而脂膏滫瀡之具,或以不给,吾是以始而骇也 

凡人之言皆曰:盈虚倚伏,去来之不可常。或将大有为也,乃始厄困震悸,于是有水火之孽,有群小之愠。劳苦变动,而后能光明,古之人皆然。斯道辽阔诞漫,虽圣人不能以是必信,是故中而疑也。

以足下读古人书,为文章,善小学,其为多能若是,而进不能出群士之上以取显贵者,盖无他焉。京城人多言足下家有积货,士之好廉名者,皆畏忌,不敢道足下之善,独自得之,心蓄之,衔忍而不出诸口,以公道之难明,而世之多嫌也。一出口,则嗤嗤者以为得重赂。

仆自贞元十五年见足下之文章,蓄之者盖六七年未尝言。是仆私一身而负公道久矣,非特负足下也。及为御史.尚书郎,自以幸为天子近臣,得奋其舌,思以发明足下之郁塞,然时称道于行列,犹有顾视而窃笑者。仆良恨修己之不亮,素誉之不立,而为世嫌之所加,常与孟几道言而痛之。乃今幸为天火之所涤荡,凡众之疑虑,举为灰埃。黔其庐,赭其垣,以示其无有,而足下之才能乃可显白而不污。其实出矣,是祝融.回禄之相吾子也。则仆与几道十年之相知,不若兹火一夕之为足下誉也。宥而彰之,使夫蓄于心者,咸得开其喙,发策决科者,授子而不栗,虽欲如向之蓄缩受侮,其可得乎?于兹吾有望于子!是以终乃大喜也。

古者列国有灾,同位皆相吊。许不吊灾,君子恶之。今吾之所陈若是,有以异乎古,故将吊而更以贺也。

注:滫瀡(xiūsuǐ)这里指淀粉一类烹调用的东西。

小题1:对下列句子中加点词的解释,不正确的一项是( )(3分)

A.今乃有焚炀赫烈之虞虞:忧虑

B.于是有水火之孽孽:罪恶

C.虽圣人不能以是必信虽:即使

D.自以幸为天子近臣以:认为小题2:下列属于作者祝贺王参元家失火的主要意图的一项是( )(3分)

A.阐述“盈虚倚伏,去来之不可常”的道理。

B.肯定王参元“读古人书,为文章,善小学”的才华。

C.改变王参元“进而不能出群士之上”的现状。

D.表达“仆私一身而负公道久矣”的愧疚。小题3:下列对原文有关内容的分析和概括,不正确的一项是( ) (3分)

A.文章第一段中“骇”“疑”“喜”三个字,表现了作者的心理变化,后文叙议的内容就是围绕着这三个字展开的。

B.作者认为王参元很有才华,但家中积有钱财,为官是否廉洁令人生疑,这是王参元遭到世人猜疑的主要原因。

C.作者在贞元十五年就读到王参元的文章,在读后的六七年中一直没有对王参元的文章作出应有的评价。

D.文章用书信的形式,借王参元家失火这件事表达了作者的想法,同时也针砭了当时诋毁人才的恶劣的社会风气。小题4:把画线的句子翻译成现代汉语。(10分)

(1)仆始闻而骇,中而疑,终乃大喜,盖将吊而更以贺也。(4分)

译文:

(2)然时称道于行列,犹有顾视而窃笑者。(2分)

译文:

(3)黔其庐,赭其垣,以示其无有,而足下之才能乃可以显白而不污。(4分)

译文:

题型:单项选择题 A1型题

阅读表达。

To the Editor:

     I have been reading your newspaper, the Hometown Gazette, for the past two years,ever since I moved to

Smithville. We moved here from New York City, so I am accustomed to reading excellent newspapers such as

The New York Times. In fact, we still have the Times delivered on Sundays. The entire family enjoys reading

the recipes in the paper, as well as the Styles section.

     The Times is great, but _____. I've never read an article that doesn't contain at least three or four spelling

or grammatical errors. For instance, in last week's issue, you misspelled the word "secretary", used a singular

verb with a plural noun, and used "it's" as a possessive. And that was just in the lead story! In case you never

went to elementary school, "it's" means"it is". It's not a possessive adjective!

     It's a pity that this tiny little hick (土气的) town has only one newspaper, because I'd like to have an

alternative to the rag you publish. I find it hard to believe your news stories. If you can't spell correctly, how

can you get your facts right?

     I've been meaning to get this off my chest for some time. Please cancel my subscription. And buy yourself

a dictionary. 

                                                                                                                                       Sincerely,

                                                                                                                                       Jane Z. Jones

1. What's the main purpose of the writer writing the letter? (Please answer within 10 words.)

    ______________________________________________________________________________________

2. Fill in the blank with proper words or phrases to complete the sentence. (Please answer within 10 words.) 

    ______________________________________________________________________________________

3. What's the major problem with the Hometown Gazette? (Please answer within 10 words.) 

    ______________________________________________________________________________________

4. Translate the underlined sentence into Chinese. 

    ______________________________________________________________________________________

5. What would you do in response to the letter if you were the Editor? (Please answer with in 20 words.) 

   ______________________________________________________________________________________

题型:单项选择题 A1型题

企业根据市场供需情况,或针对不同的顾客(如老顾客或大量购买其商品的顾客),在商品标价上给予的扣除叫做______。

A.现金折扣
B.销售折让
C.商业折扣
D.销售折扣

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