简述摩擦公式和抗剪断强度公式。

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问题:

简述摩擦公式和抗剪断强度公式。

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China reported blistering growth for the last three months of 2009, raising expectations of interest rate increases and other measures to head off inflation.

China has declared that it is recovering from the global economic crisis.

Ma Jiantang, of the National Bureau of Statistics, said Thursday the country's economy grew by 10.7 percent in the last three months of 2009.

Ma says China has managed to quickly hold back what he described as “the sliding of the national economy.” He says China has become the first country, on the whole, to achieve economic recovery and stabilization.

According to previous estimates, Ma says China's gross domestic product for 2009 rose 8.7 percent to nearly five trillion dollars.

This goes beyond the official growth rate target of eight percent. The government has long considered eight percent growth essential to creating enough jobs for the country's more than one billion people.

At the same time, Ma says some problems and contradictions are natural.

Ma says the Chinese government will give more priority to economic restructuring and improving peoples’ livelihoods.

To reduce the effects of the global economic crisis that began in 2008, China loosened lending practices, cut interest rates and began massive spending programs. But the government wants to make sure those measures do not contribute to inflation, which can be politically sensitive in a country where hundreds of millions of people remain poor.

Beijing resident Ms. Wang says she is worried. She says she thinks prices are rising really fast. She points to the price of cabbage, which has increased more than 10 times in the past year.

The head of the Chinese Banking Regulatory Commission, this week said the government will step up monitoring of banks and rein in lending to prevent speculative bubbles (投机泡沫)in real estate(房地产) and other assets.

The World Bank on Thursday released a report that predicts China's economy will grow by nine percent this year. This contrasts with forecasts of 2.5 percent growth rate for the United States and one percent growth for European economies in 2010, because of weaknesses remaining from the global financial crisis.

68. What does the underlined phrase in the first paragraph mean?

A. prevent              B. begin                      C. continue            D. reduce

69. How many measures did China take to reduce the sliding of the national economy?

A. 2                         B. 3                  C. 4                      D. 5

70. The global economy in 2010 will ________.

A. increase more quickly than in 2009

B. recover immediately if proper measures are taken

C. remain weak as a result of the global financial crisis

D. remain the same standard as that in 2009

71. The passage is mainly about ________.

A. jobs created for more than one billion people

B. lending practices loosened in China in the new year

C. rapid growth of Chinese economy in last months of 2009

D. fast growth in economy leading to inflation

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下列国家中既属于面积大国,又属于人口大国的一组是(  )

A.俄罗斯、印度

B.中国、加拿大

C.美国、ri本

D.俄罗斯、中国

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低氧血症是指Pa02低于 __________ mmHg。

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下面的诗词名句,如果依照雨后秋山、北方大雪、日落西山、细雨长滴的次序排列,正确的排序是*

A.④①②③

B.①②③④

C.③①②④

D.④③①②

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