人们大量捕杀环境中的青蛙、麻雀等动物,会破坏生态平衡。

题型:判断题

问题:

人们大量捕杀环境中的青蛙、麻雀等动物,会破坏生态平衡。

考点:生态系统的概念和组成食物链和食物网生态系统的多样性生态系统的自动调节能力生态系统的功能
题型:判断题
完形填空。
     Napoga Gurigo is a 12 -year- old girl in Ghana, Africa. It is    1    for her family to get clean water. The
nearest place to get water is a dirty hole half a kilometer from their    2   .
     Every morning, Napoga    6    home at half past five to get water for her family. Sometimes it    4    six
hours to get enough clean water. Napoga has no time to go to school    5    play with her friends. Millions of
people in the world are like Napoga. They can't get enough clean water to    6    healthy. Most of those people
are in Africa. Water covers 70 per cent of the Earth's surface. But most of that is sea water. We can't use it
for drinking or cooking. Fresh water is    7    we use to drink, take showers and cook food. But fresh water
    8    only 1 per cent of the Earth's surface.
     Many people have made wells to get clean water from     9   . But there still isn't enough. Scientists say
that in 30 years, more than half of the people in the world    10    have enough clean water.
(    )1. A. easy    
(    )2. A. school  
(    )3. A. goes    
(    )4. A. spends  
(    )5. A. and      
(    )6. A. keep    
(    )7. A. that    
(    )8. A. takes    
(    )9. A. under the surface
               of the ground 
(    )10. A. won't    
B. hard
B. city
B. stays
B. costs
B. or  
B. get 
B. /    
B. runs
B. above  the surface
    of the ground
B. will 
C. fun     
C. country   
C. leaves    
C. pays      
C. but       
C. have      
C. what       
C. flows     
C. the rivers 

C. can     

D. impossible 
D. village   
D. comes     
D. takes     
D. while   
D. do       
D. when    
D. covers   
D. the sea 

D. can't    

题型:判断题

以测量电解过程中被测物质在电极上发生电极反应所消耗的电量为基础的电化学分析法是()

A.电位分析法

B.库仑分析法

C.极谱分析法

D.电解分析法

题型:判断题

吸宫时突然出现心动过缓、心律紊乱、血压下降、面色苍白、恶心、胸闷()

A.人流综合征 

B.子宫穿孔 

C.羊水栓塞 

D.人流后感染 

E.宫颈内口粘连

题型:判断题

实验研究中对照组与试验组的主要区别为()。

A.受试对象不同

B.样本量不同

C.处理因素不同

D.观测指标不同

E.构成不同

题型:判断题

风流倜傥:fēng liú tì tǎng

更多题库