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问题 单项选择题

如在开关场互感器二次线圈中性点装附加对地保护,可考虑选击穿电压()V的氧化锌阀片。

A、500~100

B、1000~1500

C、1500~2000

D、2000~2500

答案

参考答案：C

解析：题目来源：电网继电保护应用第4节~第5节
专业类型：继电保护
设备类型：公共部分
难度等级：一般
电压等级：其他
知识点：二次回路

完形填空

Li Ping，a Junior One student at High School was quite busy over the last winter vacation，not just with homework .Li，together with ten other classmates made a      group to call on people to join the Clean Your Plate Campaign(光盘行动).

The      students went to many restaurants and told the people the importance of      food. “Excuse me，do you know that 20 million people around the world still haven’t got enough to        ? Could you please not     food ?”They would say this kind of thing hundreds of times every day．   

      ,the activity has got the support of many people．In a restaurant in Chengguan District，the owner gives the guests who have eaten all the food they ordered a ticket．People can enjoy a       meal when they have ten tickets . More than 50 restaurants in Lanzhou have begun to offer          dishes and encourage their guests to take leftovers(剩菜)home.

Wasting food is a serious problem around the     ，not only in China. It's said that 1.3 billion tons of food ends up as waste last year. This is as    as one third of all the food in the world．The UN Environment Program and the Food and Agriculture Organization held a“ Think ,Eat，Save”program in January,2013 to help reduce food waste.

小题1:

A．volunteer

B．band

C．dance

D．sport小题2:

A．ten

B．eleven

C．twelve

D．thirteen小题3:

A．planting

B．cooking

C．buying

D．saving小题4:

A．eat

B．wear

C．spend

D．sleep小题5:

A．buy

B．waste

C．order

D．sell小题6:

A．Luckily

B．Rudely

C．Unluckily

D．Quietly小题7:

A．delicious

B．sweet

C．free

D．rich小题8:

A．1arger

B．smaller

C．cleaner

D．cheaper小题9:

A．city

B．country

C．world

D．restaurant小题10:

A．often

B．expensive

C．many

D．much
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单项选择题

考察被试个体差异，用于衡量被试相对水平，用于以选拔为目的的测验是（）

A、常模参照测验

B、标准参照测验

C、目标参照测验

D、团体参照测验
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