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问题 单项选择题

在三相电压对称的条件下，用“两表法”检验三相两元件有功功率时，若Cosφ=0．5（容性），电流为4A，电压为100V，第一只表（按A相电流）读数为（）W。

A.0

B.400

C.346

答案

参考答案：C

完形填空

根据短文内容填空，每空不超过一个单词（12分）

I was ___53___ excited to be picked to represent Canada. I have been to Pompeii in Italy and am now in China visiting Loulan.

Both places were important commercial cities ___54__ 2,000 years ago. They disappeared and became lost    55   . Pompeii was founded in the 8th century BC and was taken over by the Romans in 89 BC. Pompeii was destroyed __56 _ a volcano, which erupted __57__ covered Pompeii with ash. All the people were buried alive, and so was the city.

Loulan was a stopping point on the famous Silk Road __58__ the East and the West. ___59__ is believed that Loulan was gradually covered by sandstorms and then disappeared under the sand.

There are just a few ruins __60__. Some treasure, such as coins and painted pots, was found, and recently some tombs. I am becoming very interested in ancient civilizations. Maybe I shall become an archaeologist one day.

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选择题

1980年8月，原温州市革命委员会转发了市工商局《对个体工商户进行全面整顿、登记、发证工作的报告》的通知，1844位个体户统一领到了营业执照，成为温州乃至全国第一批具有合法身份的个体户。这说明

A．温州企业实行承包经营责任制

B．城市经济体制改革已经全面展开

C．单一所有制经济结构已被突破

D．非公有制经济开始占主体地位
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