完形填空。 We're lucky to live in a rich coun

题型:完形填空

问题:

完形填空。
     We're lucky to live in a rich country where we have many things. However, most of us usually   1   some
things.
     Electricity is one thing that we waste most. Lights, TVs,   2   and other things are often kept on even when
no one is using them. We should turn them off when we don't need them. It   3   less a second to do it. Anyhow,
not wasting electricity saves money, because we don't have to   4   the electricity we do not use.
     The second thing that we often waste is water. Fresh water is precious (珍贵的),   5   it shouldn't be wasted.
It is only a simple matter of turning off a tap. I am sure   6   can do this easily if he wants to. 
       7   big waste is food. My mother   8   cook so much food that much of it was thrown away. I told her we
had wasted so much food. She thought I was right and now cooks   9   what we can eat.
     It is  10  to be wasteful. I find there is a simple way of not wasting things. That is to use only what we need.
Do not touch what we do not need. In this way we can stop being wasteful.
( )1. A. use       
( )2. A. radios   
( )3. A. brings  
( )4. A. afford    
( )5. A. because    
( )6. A. everyone  
( )7. A. Other    
( )8. A. planned to
( )9. A. mainly   
( )10. A. right   
B. wash      
B. bikes    
B. takes     
B. save     
B. so      
B. someone   
B. The other    
B. used to    
B. mostly   
B. fine     
C. waste     
C. pens    
C. gets      
C. pay for   
C. though    
C. no one   
C. Others   
C. was able to    
C. specially
C. bad      
D. forget       
D. books        
D. has          
D. care for     
D. but          
D. none         
D. Another      
D. was afraid to             
D. only         
D. necessary    
考点:健康环保类阅读
题型:完形填空

典型的信用条件包括的内容有:()

A.信用期限

B.信用标准

C.收账政策

D.现金折扣期

E.现金折扣率

题型:完形填空

采暖通风与空气调节设计说明不包括()内容。

A.应介绍设计概况和暖通空调室内温度设计

B.热源、冷源情况;热媒、冷媒参数

C.采暖热负荷、耗热量指标及系统总阻力

D.空调冷热负荷、冷热量指标,系统形式和控制方法,必要时,需说明系统的使用操作要点,例如空调系统季节转换,防排烟系统的风路转换等

题型:完形填空

()协议的基本功能就是通过目标设备的IP地址,查询目标设备的MAC地址,以保证通信的顺利进行。

A、IP

B、ICMP

C、ARP

D、TCP

题型:完形填空

糖可分为()、()和()。

题型:完形填空

()是使信息载体(载波)的某些特性随信息变化的过程,并能使所要传送的信息适合于信道的特性,达到最有效和最可靠的传输。

A.调制

B.信道编码

C.信源编码

D.扩频

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