生物最基本的特征是 A.繁殖 B.应激性 C.新陈代谢 D.遗传与变异

题型:选择题

问题:

生物最基本的特征是

A.繁殖

B.应激性

C.新陈代谢

D.遗传与变异

考点:生物及其特征
题型:选择题

温室效应引起全球变暖已成为人类关注的焦点。最近澳大利亚科学家又提出,与这一效应相伴随的还有“地球变暗”效应。读图完成问题。

小题1:甲图为模拟温室的小实验,两支同样的温度计静置在阳光下,十分钟后,透明玻璃瓶内的温度计的读数上升为12°C,这种温室效应与乙图中哪一环节的加强有关?

A.①

B.②

C.③

D.④小题2:乙图中与“地球变暗”相对应的大气热力作用是:

A.①

B.②

C.③

D.④

题型:选择题

填图题。

(1)商品粮基地:A           B                              

(2)牧区:C                         ,优良畜种有                        ;D                      ,优良畜种有               。      

(3)工业基地:E       ,F        ;E地以   工业为主;F地以  工业为主。

(4)铁路干线:M                          ;M铁路与N铁路交汇的城市是     。M铁路经过    的省级行政中心城市有北京、                   、郑州、                、长沙、广州。

(5)钢铁工业中心:①             ;②                  ;③     

(6)沿海港口城市:⑤                      ⑦                  

题型:选择题

[1] Look at the center circles of Diagram A and Diagram B. Which of the centre circles looks larger?

[2] Take a first look and you probably think that the centre circle in Diagram A is smaller than that in Diagram B. In fact, they are exactly the same size.

[3]Then look at the picture on the right.What do you see? A vase? Or two faces? Does the picture change quickly from one to the other again and again? Maybe or maybe not, but you can see them at the same time.

[4]“What’s happening? Is something wrong with my eyes?” You may wonder at what you see. Don’t worry. Here is how it goes:

[5]When we look at things, our eyes send messages to our brains and then our brains interpret (解释) the information. However, sometimes our brains interpret the received information in a wrong way. It seems that our eyes are playing a joke on us. This often happens and we call it “Visual illusion(幻觉)”.

[6] Movie makers often make use of illusions. They make the objects around actors much smaller or bigger than usual. This makes us believe that the actors are much larger or smaller than they usually are. The movies Jurassic Park and Honey J shrunk the kids just make use of illusions.

66. In which column of a magazine can you read the above text?

A. Culture.          B. Science.     C. Humour.    D. Education.

67. The centre circle in Diagram A looks smaller than that in Diagram B, That’s because____.

A. something is wrong with our eyes

B. the two circles are not of the same size

C. our brains interpret the information wrongly

D. pictures change quickly from one to the other

68. In the picture on the right, it seems that Line AB is shorter than lane

CD, but in fact lane AB is as long as Line CD. Which paragraph

can explain what has happened to our eyes?

A. The second one.             B. The third one.

C. The fifth one.                    D. The sixth one.

69. What’s the right order according to the text?

a. We look at things with our eyes.      

b. Our brains interpret the messages.

c. Our brains tell us what we have seen.  

d. Our eyes send messages to our brains.

A. a-d-b-c     B c-a-b-d       C a-c-d-b       D. b-e-a-d

70. Movie makers make use of visual illusions to        .

A. help the actors look better             B. make the actors much braver

C. help the actors become stronger      D. make the actors seem different in size

题型:选择题

口服脊髓灰质炎糖丸疫苗预防,哪项做法不当()

A.每次服三型白色糖丸1粒,连服3次,每次间隔4~6周

B.每次免疫从2月龄开始,4岁时再服1次,加强免疫力

C.吞服糖丸时,必须冷开水送服

D.发热、活动性肺结核、免疫缺陷者均忌服

E.为增强免疫力,在口服糖丸疫苗同时注射丙种球蛋白

题型:选择题

建设工程合同文件的构成包括()等。

A.合同技术条件(附投标图纸)

B.中标人投标时所递交的主要技术和商务文件

C.发包人授标通知

D.投标保函

E.招标人须知

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