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问题 单项选择题

某管网中A点所在地面高程为32m，水压标高为60m。则该点的服务水头为( )。

A．28m
B．32m
C．60m
D．92m

答案

参考答案：A

解析：服务水头为节点水压与地面高程之差，即A点服务水头为60-32=28m。

听力题

School education is very important and 小题1:u      . Yet no one can learn 小题2:       at school and a teacher cannot teach his students everything they want to know. His work is to show his students 小题3:_      to learn. He teaches them to read and think alone. So much more is to be learned outside school by the students 小题4:     (他们自己). It is always more important to know how to study by oneself. It is quite easy 小题5:     learn something, but it is difficult to use it to solve 小题6:p      . Great inventors don’t get everything at school, but they still can make many things and 小题7:    (改变) the world a lot. How can the inventors do all of this? One of answer is : They know how to study. A lot of things are not 小题8:t      in the classroom. They get a lot of 小题9:       （知识）by reading outside school. They work 小题10:h    and never give up all their lives.
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填空题

GTC-1000型钢轨探伤车采用的是（）型号的主发动机。
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