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问题 多项选择题

（）负责全省农村信用社网上银行业务收费项目、收费标准的制定、指导、监督等管理工作。（）负责公示有关收费服务项目和收费价格，办理具体的网上银行收费业务。

A.省联社

B.办事处（市联社）

C.县联社

D.各营业机构

答案

参考答案：A, D

阅读理解
Below is a table which shows the melting(液化)and boiling points of common substances.Study the table.Then do Numbers 4—7.
Substance
Melting point(C)
Boiling Point(C)
Water
Alcohol
Nitrogen
Oxygen
0
–117
–210
-218
100
78
–196
–183
小题1:The underlined word‘substances'means‘a type of'_________.
A．matterB．liquid
C．solidD．gas
小题2:Which of the four should be a liquid at-90 degrees?
A．waterB．alcohol
C．nitrogenD．oxygen
小题3:Mixing alcohol and water is often used to wash windscreens of cars during the wintertime because _________.
A．it is easier for alcohol to change into gas
B．alcohol is not easily separated from water
C．alcohol freezes at lower temperature than water
D．the mixture is not expensive
小题4:In order to change water from a solid to a liquid energy must be _________.
A．removedB．added
C．createdD．destroyed
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填空题

在有效工作频带内最大和最小电平之间的差值我们通常称为（）.
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