染色质的组成成分包括()A.DNA B.RNA C.组蛋白 D.非组蛋白

题型:多项选择题

问题:

染色质的组成成分包括()

A.DNA

B.RNA

C.组蛋白

D.非组蛋白

考点:生物学细胞基本知识细胞基本知识题库
题型:多项选择题

阅读短文,根据短文内容回答问题。

    Ethiopian children are crazy about football but few of them have f ootballs of their own. They have to play

with a paper football.   

    Like all children, they find time to play but they also have to do a lot of work. Some children have to help

their parents look after younger brothers or sisters from the age of five. Many young boys have to look after

animals and the girls have to help their mothers carry water.   

    At present only one third of small children go to primary school because there are so many children and so

few schools. The classes have to be very large. In one school I went to there were 90 children in a class!   

    Traditionally the Ethiopians do not eat many vegetables. This is very bad for children, so many schools have

their own garden where youngsters can grow their own vegetables.   

    There is no public transport, so children have to walk to school. One child I spoke to had to walk for even

six hours! Many walk for two or three hours. But the Ethiopians love going to school because they know how

important education is.   

    The Ethiopian government wants more children to go to school, and organizations like UNICEF are helping

them. Many of the children want to be doctors and they will have to work hard but they know that they are

Ethiopia's hope for the future.   

    Ethiopia  n. 埃塞俄比亚  

    UNICEF = United Nations International Children's Emergency Fund   

1. Do Ethiopian children like playing football? 

                                                                                                      

2. How many Ethiopian children can go to primary school?  

                                                                                                     

3. What is Ethiopians' bad eating habit?   

                                                                                                   

4. Who are helping Ethiopian children to get education?  

                                                                                                     

5. What can you learn about Ethiopia from the passage?

                                                                                                   

题型:多项选择题

产伤所致的尿瘘开始漏尿的时间多在

A.产后3~7天

B.产后10~14天

C.产后半月后

D.产后1个月后

E.产后的2个月后

题型:多项选择题

男性青年,外伤导致胫腓骨上1/3处开放性粉碎性骨折。行彻底清创,术中摘除游离骨块后伤肢行长期牵引及固定,但6个月骨折仍然不愈合,最大可能的原因是()

A.骨折处血液循环差

B.伤肢固定不确实

C.彻底清创时摘除过多碎骨块

D.功能锻炼不够

E.未及时行切开复位及内固定

题型:多项选择题

“标记唛码及备注”栏应填()。

A.00XFFFG-78017KDALIANCHINA

SCZU7855234委托大连化工进出口公司签约

B.00XFFFG-78017KR

DALIANCHINA S

CZU7855234受长春钢厂委托

C.00XFFFG-78017KR

DALIANCHINA

SCZU7855234/40/自重

D.00XFFFG-78017KR

DALIANCHINA

SCZU7855234

题型:多项选择题

常量元素在动物体内的含量约占体重的()。

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