试题与答案

曝气池中曝气量过大不会导致()A.活性污泥上浮 B.活性污泥解体 C.活性污泥膨胀

题型:单项选择题

题目:

曝气池中曝气量过大不会导致()

A.活性污泥上浮

B.活性污泥解体

C.活性污泥膨胀

D.异常发泡

答案:

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参考答案:[*]( 8 )其中Tt为驱动力矩,T f1、T f2分别为前轮和后轮的滚动阻力偶矩,F z1、F z2分别为前、后轮的法向反力,G为整车重力、[*]为坡度角、u为车速,F x1、F x2分别为前、后轮所受到的地面切向...

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题型:阅读理解

The first newspaper were handwritten sheets which were posted in pubic places. The earliest recorded newspaper was started in Rom in 59 BC. In the 700’s the world’s first printed newspaper was developed in China. The paper was printed from carved(雕刻的) wooden blocks and sent out among the citizens. Europe didn’t have a regularly(定期的) published newspaper until 1609, when one was started in Germany.

The fist regularly published newspaper in the English language was printed in 1620. In 1621, an English newspaper was started in London and was published weekly. The first daily English newspaper was the Daily Courant, which didn’t appear until March 1702.

In 1690, Benjamin Harris printed the first American newspaper in Boston. But the local(当地的) government soon stopped its publication. In 1704, John Campbell started The Boston News-letter, the first newspaper to be published daily in America. By 1760, the whole America had more than thirty daily newspapers. There are now about 1800 daily papers in the United States.

Today, as a group, English language newspapers have the largest circulation(发行量) in the world. The largest circulation for a newspaper, however, is that of the Japanese newspaper Asahi Shimbun, which sells over eleven million copies every day.

71.In Europe, the newspaper was first regularly published_____.

A.in England                B.in Germany

C.in France                 D.in London

72.The first English newspaper printed and sold every day appeared _________.

A.in 1620                B.in 1609

C.at the end of the 17th century

D.at the beginning of the 18th century.

73.How many years earlier was the newspaper printed in China than in America?

A.9 or 10 centuries.     B.More than 1000 years.

C.700 years or so       D.Less than 800 years.

74.As suggested by the article, which of the following newspapers have the largest umber of readers in the world?

A.Italian language newspapers.

B.German language newspapers.

C.English language newspapers.

D.Japanese language newspapers.

75.Which title best gives the main idea of the passage?

A.The World’s First Newspaper.

B.History of  Newspaper.

C.The First Daily Newspaper in American.

D.A Remarkable Man-Benjamin Harris.

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