如图所示，开关s闭合后，小灯泡不发光，电流表无示数．这时用电

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问题选择题

如图所示，开关s闭合后，小灯泡不发光，电流表无示数．这时用电压表测得a、b两点间和c、d两点间的电压均为零，而a、d间和b、c间的电压均不为零，下列判断正确的：

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A．电源接线柱接触不良

B．开关的触片或接线柱接触不良

C．电流表接线柱接触不良

D．灯泡灯丝断了或灯座接触不良

答案

答案：C

填空题

综合填空。

My name is Mike Green. I come from England. I study in a middle school in London. My father works in

a school. My mother doesn't work. She stays at home and does the housework. I go to school five days a

week. I like swimming and listening to popular music. I don't have much homework to do. After school, I

help my mother do the housework. I love my father and mother. They're very kind to me.

Mike is an 1_____ boy. He is a middle school 2_____. His father is a 3_____, His mother 4_____ go to

work. John doesn't go to school on 5_____ or 6_____. He 7_____ swimming. He 8_____ have much

homework to do. He often 9_____ his mother do the housework. He is a 10_____ child.

单项选择题

目标控制流程和监理信息流程应该在( )中做出明确规定。

A．监理大纲

B．监理细则

C．监理工作计划

D．监理规划