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听力原文: Now, should a library be a quiet place to read a book or a lively centre where you can hang out and drink coffee? And can it be both? Author Tracy Chevalier who is also chairman of the Society of Authors, told MoFo News she is worried library is sacrificing books in favor of internet access and other facilities. Lena Techaty has mom. Where I live? I have just a very small public library and, urn, I've noticed over the years that there are fewer and fewer shelves and more and more computers that's just slowly taking over and there are fewer and fewer places to sit in and look at any books and there are fewer books. Is she right? Are books disappearing from our library shelves? Lena's figures show that in the UK last year, while people visiting libraries increased, the number of books in libraries actually fell by 3%. And the amount spent on books and other reading material also dropped, com- pared that to near 20% rise in the money spent on online resource. Which is the most appropriate title for the passage?
A.
The Development of Library in the UK
B.
More Books and Fewer Computers in the Library
C.
More Computers and Fewer Books in the Library
D.
The Government's Growing Investment in the Library
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参考答案:
举一反三
【多选题】冷却水系统由( )组成。
A.
冷却水塔
B.
冷却水泵
C.
冷却水循环泵
D.
冷却水供、回水管道的相应阀门
E.
冷却水供、回水管道
【判断题】传统触点式点火系统的电容器的作用是减小触点火花,降低次级电压。()
A.
正确
B.
错误
【简答题】一般发动机的冷却系统组成大体相同,由 、 、 、 和 等组成。
【多选题】北汽EV200的驱动电机冷却系统采用水冷方式进行冷却,该冷却系统主要由组成( )。
A.
电动水泵
B.
机械水泵
C.
散热器
D.
电动风扇
E.
储液罐
F.
冷却循环管路
【多选题】冷却系的组成由( )。
A.
压力调节器
B.
散热器
C.
水泵
D.
节温器
【简答题】无触点电感式电子点火系按触发方式不同分__________、__________和 __________三种。
【判断题】CRH2 型动车组牵引变流器的冷却系统由通过外气进行冷却的主冷却部和不导入外气进行冷却的密封室冷却部组成。
A.
正确
B.
错误
【多选题】水冷发动机的冷却系统通常由( )组成。
A.
冷却水套
B.
水泵
C.
风扇
D.
水箱
E.
节温器
【多选题】汽油机点火线分为( )。
A.
无触点电子点火系
B.
有触点电子点火系
C.
有触点磁电机点火系
D.
有触点蓄电池点火系
【单选题】采用没有共通阻抗的布线是理想的方法。但是,此时因为布线增多,有时要共用返回电路。返回电路应使用有充分余量的粗电线,并将( )信号水平归在一起布线
A.
、相似
B.
、相仿
C.
、不同
D.
、相同
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