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问题 单项选择题

在信息化指数指标体系中，信息系数与( )直接相关。　

A．第三产业就业人口比重　
B．计算机普及率　
C．衣、食、住的支出在个人消费中的比例　
D．人均年通话次数

答案

参考答案：C

填空题

阅读填词。

     Li Mei is a Chinese girl, but she's in the USA now. She's six 1______ old. One day her mother says

2______ her:"Now you're six. You 3______ go to school." Li Mei 4______ to school 5______ her mother

every day. She 6______ hard. "I have a new 7______, Mum." Li Mei says, "Her 8______ is Joy. She's

English. But her parents are in 9______."

     "Can she speak Chinese?" Mum asks.

     "Yes, but a 10______."
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选择题

为了使某电炉消耗的功率减为原来的1/2，下列办法能用的是

A．将电阻减为原来的一半，电压不变

B．将电压、电阻都减为原来的一半

C．使电压减为原来的一半，电阻不交

D．电流减为原来的一半，电阻不变
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