阅读关于PM2.5的资料,回答问题。 PM2.5是指大气中直径小于或等于2.5微

题型:材料分析题

问题:

阅读关于PM2.5的资料,回答问题。

PM2.5是指大气中直径小于或等于2.5微米的颗粒物,颗粒直径只有一根头发丝的1/20,又称“可入肺颗粒”。人吸入过多的PM2.5可引起多种疾病。世界卫生组织推荐的环境空气质量指导值中,PM2.5为每立方米10微克。

1.与世界卫生组织推荐值相比,所列采样点的PM2.5浓度均已超标。归纳监测点PM2.5污染物可能的主要来源。

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2.一般而言,大气中的PM2.5浓度除与污染源有关外,还会受哪些气象因素影响?如何影响?

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3.大气中的PM2.5除影响人体健康外,还会对大气环境产生哪些影响?

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4.为降低大气PM2.5含量可以采取哪些积极的举措?

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考点:大气污染现象和大气污染物大气污染防治
题型:材料分析题

关于胰液的叙述,错误的是()

A.胰液在非消化期几乎不分泌

B.胰液中无机物的作用是中和胃酸,提供消化酶所需环境

C.胰液的有机物主要是蛋白质,产生各种消化酶

D.胰液分泌受神经和体液双重控制,以体液调节为主

E.迷走神经反射抑制胰液分泌

题型:材料分析题

依据《中华人民共和国水污染防治法实施细则》,可允许()。

A、船舶向地表水体倾倒垃圾

B、电镀企业向表水体排放酸液

C、在河漫滩设置垃圾填埋场并向河体排放渗滤液

D、医院向地表水体排入经消毒处理关达到排放标准的含病原体污水

题型:材料分析题

第二节完形填空(共20小题;每小题1.5分,满分30分)
阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。
One afternoon, I went to pick up my mother from work. I got a little early so I  36    the car by the roadside, and  37 for her.
As I looked 38  the car window to my right, I saw a little boy around two years old in a small park, 39  freely on the grass as his _40___ watched him from a short distance. The boy had a __41___ smile on his face. He would then fall to the grass, get up , and without__42___ or without looking back at his mother, run as fast as he could, again, still with a big smile on his face, as if __43___ had happened.
With 44  especially at an early age, when they fall down, they don’t consider their falling down as a failure, __45___ instead, they treat it as a learning experience. They try and try again _46____ they succeed.
The answer must be that they have not connected “falling down” with the word “__47__” yet. Thus they don’t know __48__ to feel the state which accompanies failure. They probably think that it is perfectly okey to fall down, and that it’s not _49___ to do so. In other words, they give themselves permission (许可) to _50___ mistakes subconsciously(潜意识地). Thus they always remain encouraged.
I was _51___ by the boy’s persistence(坚持) and the manner in which he ran. With each _52___, he looked so confident. No _53__ of fear, or of being discouraged ----- as if he didn’t _54___ the world around him. His only aim was to run _55___ and to do it as effectively as he could. I learned a lot from that observation and experience.
36.A.packed     B.parked      C.refueled    D.cleaned
37.A.called       B.looked      C.waited      D.searched
38.A.inside       B.outside     C.around      D.for
39.A.walking    B.running    C.jumping    D.playing
40.A.teacher     B.friend       C.father          D.mother
41.A.sad       B.little     C.big       D.weak
42.A.doubt       B.hesitation  C.mercy       D.effect
43.A.nothing    B.something C.everything       D.anything
44.A.kids     B.girls     C.adults       D.parents
45.A.and      B.if         C.but       D.so
46.A. unless      B.after     C.until     D.before

2,4,6

 
47.A.pain     B.failure      C.state     D.mistake

48.A.how     B.what     C.why     D.where
49.A.good     B.interesting C.right     D.wrong
50.A.avoid          B.correct      C.make     D.admit
51.A.bothered   B.touched  C.confused    D.frightened
52.A.cry       B.success     C.try       D.smile
53.A.scenes      B.marks       C.signals      D.signs
54.A.care about B.ignore      C.adjust to   D.expect
55.A.safely       B.unsteadily C.regularly   D.freely
题型:材料分析题

每日饮纯乙醇超过多少,持续10年以上应考虑可有酒精性心肌病()

A.60ml

B.300ml

C.125ml

D.90ml

E.30ml

题型:材料分析题

塔式起重机司机患有下列哪些疾病和生理缺陷的不能做司机工作?()

A.色盲

B.心脏病

C.断指

D.癫痫

E.矫正视力低于5.0(1.0)

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