题干

下列关于世界气温分布的叙述,不正确的有(  )

A:世界气温大致从低纬度向两极逐渐降低

B:海拔的高低会影响气温的变化

C:同纬度的地区气温完全一样

D:南半球的等温线大致与纬线平行

上一题 下一题 0.0难度 选择题 更新时间:2012-06-28 05:28:22

答案(点此获取答案解析)

C

同类题4

匹对阅读。根据对五个人的描述,从八则广告中选出最恰当的选项并把它的字母编号写在题号前的括号内。

____Xiao Feng,a student is from China. But she is crazy about American music. And she is only free on Saturday.

____Windy, a Beijing University student comes from England. She wants to know what happened in China in the past.

____Fan Fan is a 13—year—old boy. Tomorrow is his mother's birthday, but he isn't sure what he should buy for her.

____Dan Dan, a 16 —years—old student comes from a poor family. She goes to school from Monday to Friday. And she is looking for a part—time job.

____Xia Mei is a dance lover. She can give a wonderful Chinese dance, but she wants to learn more.

A Live Music—Late Night Jazz

    Enjoy real American jazz from Herbie Davis, the famous trumpet player. He is known to play well into the early hours, so don't lose the chance(机会).

B Scottish Dancing

    Scottish dancing is nice and easy to learn. The wonderful dance from England will by given.

C Show—Anhaul Museum

    There are 12000 pieces on show here .You can see the whole of Chinese history.

D Rose Hotel

    1Oct—31Mar. $198 for a night; 1Apr.—30Apr. closed; 1May—30Sep.$218 for a night.

E Wanted

    The best gift for the woman who has birthday.

F Saturday Job

    Cleaner(16+) for company in Hoe. 8am—1pm only $5 an hour. Tel:47885445

G Reporter Wanted

    New Evening Paper is looking for a reporter between 13 and 16 to work from 4pm to 6pm weekday. Tel: 0451—865541

H Prince of the Piano

    Richard Clayderman, the French pianist who is widely known as “ the Prince of the Piano”, will give his concert this Sunday night, at 8.00 at Flower

Hall, City College.

同类题5

某科研小组做了一系列生理实验,将小鼠先后置于25℃、0℃、25℃环境中,每一环境中均生活15min,从开始到结束,每隔5min测一次皮肤血流量、血液中促甲状腺激素、甲状腺激素的含量,共测10次,假设测量过程不影响激素的分泌,测量结果(相对值)如下表:

表一:


 25℃

 0℃

 25℃

起始

1

2

3

4

5

6

7 

8

9

 A

0.45

 0.45

0.44 

0.45 

0.55 

0.55 

0.52 

0.50 

0.46 

0.45 

 B

 0.31

 0.31

0.31 

0.30 

0.30 

0.60 

0.62 

0.38 

0.33 

0.32 

 C

 0.23

 0.23

 0.23

 0.23

 0.18

 0.17

 0.16

 0.22

 0.23

0.23

(1)据题中所给信息可知,进入0℃环境时,首先增加的是哪项生理指标:____ (填表中字母),它代表的是____ ;表1中C项代表____ 

(2)实验过程中,能直接调节小鼠产热量的生理指标是____ (填表中字母),能调节小鼠散热量的生理指标是____ (填表中字母).其中表一中A的分泌受____ ____ 的调节.

(3)与25℃相比,小鼠在0℃条件下表二选项中符合事实的是____ .

表二:


 产热量

散热量 

 耗氧量

 肾上腺素含量

 体内酶活性

 A

 少

 多

 多

 低

 增强

 B

 多

 多

 多

 高

 不变

 C

 少

 少

 少

 低

 减弱

 D

 多

 少

 多

 高

不变

(4)实验中若破坏小鼠的下丘脑,与正常鼠相比较,除了体温不能保持相对恒定之外,还可能观察到哪些异常生理现象或症状?____ 

①生长发育情况;    ②尿量的多少;    ③精神萎靡与否;

A.仅能观察①B.仅能观察②

C.仅能观察③D.①②③都可以做为观察指标.