南极臭氧层的恢复可能要到2065年。科学家研究表明,氯、溴排放的下降速度没有预期的那

题型:单项选择题

问题:

南极臭氧层的恢复可能要到2065年。科学家研究表明,氯、溴排放的下降速度没有预期的那样快。今年9月南极臭氧层空洞的面积达到1 000万平方英里大小,相当于整个北美洲。北极臭氧层的破坏程度小于南极,北极臭氧层的恢复可能要到2040年。南极冬季的严寒导致氯转化成另外的形式,对臭氧层的破坏更大,而北极的冬季则比较温暖。 对这段文字的主旨理解正确的是( )。

A.南极臭氧层比北极臭氧层的恢复更慢

B.氯、溴排放的下降速度慢影响臭氧层的恢复

C.今年南极臭氧层空洞更大

D.季节气候变化影响臭氧层的恢复

考点:地方公务员行政职业能力测试内蒙古行政职业能力测验
题型:单项选择题

2005年全国第三次口腔流行病学调查结果显示,某地区12岁年龄组的龋均为3.0,根据WHO龋病流行程度评价指标衡量,该地区的龋病患病水平是

A.很低
B.低
C.中
D.高
E.很高

题型:单项选择题

按照辽宁省防控重大动物疫病应急物资储备库建设指导标准规定,县级防控重大动物疫病应急物资储备库建筑面积不少于()平方米。

A.50

B.80

C.120

D.300

题型:单项选择题
Dinah is one of the most good-natured children that ever lived, but she is very, very lazy. There is nothing she likes, or used to like, so much as to curl up in some warm corner in the sun and do nothing.
Dinah’s mother wished very much that her child should learn to read, but the lady who tried to teach her soon give it up. “It is no   16  ,” she said, “Dinah   17  not learn. She is not stupid, but too lazy.”
It happened soon that a young man from Massachusetts came to the house where Dinah lived. He brought with him something no one else in the neighborhood had ever seen before-a pair of roller-skates.
When Dinah saw the young man going rapidly up and down the piazza (广场) on his skates she was so   18 . She ran after him like a cat, her black eyes shining.
One day the young man allowed her to   19  the skates. The child was too happy for words. Of course she fell down, but did not   20  at all.
“Look here, Dinah,” said the young man, “I understand that my aunt has been trying to teach you to read. Why didn’t you learn? Now, if you can read, I will send you a pair of good roller-skates.”
For a moment she said  21 , then exclaimed decidedly, “I’ll have those skates, sure.”
And she did. When she   22  her mind on her work, she could always do it well,  23  it was.
The lady who had before this found her   24   difficult a child to teach, now had no trouble. If Dinah showed the least   25  of her former laziness, the word SKATES was enough to draw her attention back to her lesson instantly.
On New Year’s morning she received a box marked in large printed letters:
MISS DINAH MORRIS,
Care of Mrs. Lawrence Delaney,
NEW ORLEANS, LA.
If she can read what is on the outside of this box she can have what is inside.
And as Dinah read every word clearly and quickly, of course she had the fine roller-skates the box held. And now sitting curled up in the sun, doing nothing, is not the thing she likes to do best.
小题1:
A.needB. way C. use D. importance
小题2:
A.shallB. willC. mustD. can
小题3:
A.astonishedB. terrifiedC. frightenedD. shocked
小题4:
A.put upB. try outC. try onD. have on
小题5:
A.moveB. hurtC. cryD. mind
小题6:
A.somethingB. nothing C. anythingD. everything
小题7:
A.paidB. drewC. bent D. made
小题8:
A.wheneverB. howeverC. whatever D. wherever
小题9:
A.suchB. so C. stillD. very
小题10:
A. signB. impressionC. markD. expression
题型:单项选择题

质量相同的三个实心正方体块,A为铜块,B为铁块,C为铝块(ρ>ρ>ρ)把它们放在水平桌面上,对桌面的压强(  )

A.PA>PB>PC

B.PA<PB<PC

C.PA=PB=PC

D.无法判断

题型:单项选择题

心包()

A.内层为浆膜性心包

B.外层为纤维性心包

C.浆膜性心包壁层又称心外膜

D.浆膜性心包脏层又称心外膜

E.浆膜性心包脏、壁层之间为心包腔

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