问题 单项选择题

变电所的主变压器容量及台数选择。

35~110kV变电所中变压器的设置错误的是( )。

A.在有一、二级负荷的变电所中,宜装设2台主变压器;
B.在有一、二级负荷的变电所中,一般应装设3台主变压器;
C.在有一、二级负荷的变电所中,当技术经济比较合理时,可装设2台以上主变压器;
D.如变电所可由中、低压侧电力网取得足够容量的备用电源时,可装设1台主变压器。

答案

参考答案:B

解析: 根据《35~110kV变电所设计规范》(GB 50059-1992)第3.1.2条。

单项选择题
阅读理解

Cittaslow has discovered China, and it is awarding a little village in Jiangsu the title of "slow city"

The bored teenagers of Gaochun are impatient with the leisurely pace of hometown life.For them there is no nightlife to speak of, no bright lights, no excitement and they cannot wait to grow up and leave for the urban attractions of the big cities.But it is this laid-back lifestyle that has attracted international attention.At least, a quiet village within Gaochun county has come under the spotlight.Yaxi village, population 20,000, is about to be designated China's first "slow city" by Cittaslow, the sustainable lifestyle movement that first surfaced in Italy 11 years ago.

At home, the residents at Yaxi are unfazed and pretty much unimpressed by the honor.To them, life has been like this for as long as they can remember.Here, growing old gracefully is natural.

Nobody living in this little county had heard of Cittaslow or the words "slow city" before this.

"The first time I heard the term was last July, when the vice-president of Cittaslow, Angelo Vassallo, visited Yaxi village," says Zuo Niansheng, the chief editor of local newspaper Gaochun Today.

"Vassallo was deeply impressed by this village's natural and cultural resources and said it perfectly fitted the requirements for a slow city," says Zuo."That was how Yaxi became connected with Cittaslow.

The Slow City must also be committed to protect and maintain the natural environment as well as promote a sustainable way of development ?all of which are the current strategies adopted in Gaochun."We've been doing this for years," adds Zuo.

Cittaslow was founded in Tuscany, Italy in 1999.It was a spin-off from the Slow Food movement which started, also in Italy, in 1986 as a protest against the first McDonald ' s opening near the Spanish Steps in Rome.The movement championed a return to healthy, nutritious home-grown, home -cooked food.

Slow Food has since expanded globally to more than 130 countries.Its mission has also broadened to include the promotion of sustainable foods and local small businesses, and the localization as opposed to globalization of food production.

Cittaslow is an expansion of the Slow Food movement, and it actively advocates a lifestyle that is sustainable, that will improve quality of life, and will preserve cultural and culinary (烹饪的)heritage.

小题1:According the passage, Cittaslow is a(n) ____.

A.organization

B.person

C.lifestyle

D.honor小题2:What' s the reaction of the residents at Yaxi to the award according the passage? They feel

A.very excited.

B.very shocked

C.indifferent

D.very happy小题3:Why is the village Yaxi awarded the title of “slow city”? Because          .

A.it is full of excitement and activities of nightlife

B.the residents at Yaxi enjoy a leisure life

C.it is very rich and has a lot of attractions

D.foreign people like small towns than big cities.小题4:It can be inferred from the passage that         .

A.young people at Yaxi enjoy their life very much

B.China is more and more popular with foreign people

C.the first McDonald’s in Europe was opened in Spain

D.the lifestyle of “slow city” will be good to environment and people