下列说法正确的是( )。 A.镍氢电池、锂电池和碱性锌锰干电池都是二次电池 B.

题型:选择题

问题:

下列说法正确的是(  )。

A.镍氢电池、锂电池和碱性锌锰干电池都是二次电池

B.燃料电池是一种高效但是会污染环境的新型电池

C.化学电池的反应基础是氧化还原反应

D.铅蓄电池放电的时候正极材料是Pb,负极材料是PbO2

考点:一次电池原电池电极反应式的书写原电池原理燃料电池
题型:选择题

Argentina in the late nineteenth century was an exciting place. Around 1870, it was experiencing an economic(经济的)boom, and the capital, Buenos Aires, attracted many people. Farmers, as well as a flood of foreigners from Spain and Italy, came to Buenos Aires seeking jobs. These jobs didn′t pay well, and the people felt lonely and disappointed with their new life in the city. As the unhappy newcomers mixed together in the poor parts of the city, the dance known an the tango(探戈舞)came into being

At the beginning the tango was a dance of the lower classes. It was danced in the bars and streets. At that time there many fewer women than men, so if a man didn′t want to be left out, his only choice was to dance with another man so that he could attract the attention of the few available women. Gradually, the dance spread into the upper classes of Argentinean society and became more respectable.

In Europe at this time, strong interest in dance from around the world was beginning

The interest in international dance was especially evident in Paris. Every kind of dance from ballet(芭蕾舞)to belly dancing could be found on the stages of the Paris theaters of the Paris theaters. After tango dances from Argentina arrive in Europe, they began to draw the interest of the public an they performed their exiting dance in cafes, Though not everyone approved of the new dance, saying it was a little too shocking, the dance did find enough supporters to make it popular.

The popularity(流行)Of the tango continued to grow in many other parts of the world. Soldiers who returned to the United States from World War I brought the tango to North America, It reached Japan in 1926, and in 2003 the Argentinean embassy in Seoul hired a local tango dancer to act an a kind of dance ambassador, and promote tango dancing throughout South Korea.

小题1:The origin of the tango is associated with

A Belly dances B. American soldiers

C. Spanish city D. the capital of Argentina

小题2: Which of the following is true about the tango?

A.It was created by foreigners from Spain and Italy.

B.People of the upper classes loved the tango most

C.It was often danced by two male in the beginning

D.A dancer in Seoul became the Argentinean ambassador.小题3:Before World War I, the tango spread to 

A.America

B.Japan

C.France

D.South Korea小题4:What can be the best title for the text?

A.How to Dance the Tango

B.The History of the Tango

C.How to Promote the Tango

D.The Modern Tango Boom

题型:选择题

国际市场上的普遍规律是()的强势品牌占据着()的市场。

A.20%,80%

B.30%,70%

C.40%,60%

D.80%,20%

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凝汽器水侧化学主要检查项目是什么?

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围绕治安问题开展的社会管理,是维护社会治安的战略性措施。( )

题型:选择题

第二次柏林危机

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