将每吨粘土能配出表观粘度为20mPA、?s的钻井液体积称作粘土造浆率。

题型:判断题

问题:

将每吨粘土能配出表观粘度为20mPA、?s的钻井液体积称作粘土造浆率。

考点:钻探工考试钻探工考试题库
题型:判断题

患者,女性,头面部红斑、肿胀伴局部瘙痒两天。患者3天前有染发史,既往染发后有类似轻微发作史。查体:头面部对称性弥漫性潮红斑片,少许丘疱疹,双眼睑肿胀不睁。

根据其病史及临床表现,应诊断()。

A.急性湿疹

B.面部丹毒

C.接触性皮炎

D.皮肌炎

E.系统性红斑狼疮

题型:判断题

影响劳动力自身需求工资弹性的因素包括()。

A、要素替代的难易度

B、其他生产要素的供给弹性

C、最终产品的需求价格弹性

D、产品总成本中劳动力成本所占的比重

E、要素的构成

题型:判断题

The United States is trying to improve an edueation system that produces millions of citizens who cannot read, write, or add—let alone finding their country on a map.

In his first State of Union message since taking office a year ago, President George Bush promised to wipe out illiteracy(文盲) in the next decade and declared that“by the year 2008, U.S students must be first in the world in math and science achievements. ” They have a long way to go. American students were placed 14th in a recent general science test conducted in 16 countries. In a separate survey of chemistry students, the United States came 12 out of 14. In a mathematics test, they were last. According to Bush, there are 17 million illiterates in this country of 245 million people. Other estimates put the number as high as 23 million. In percentage terms, that ranks the United States alongside Niearague and below Cuba. “This nation,”Bush said in his State of the Union address, “will not accept anything but excellent in education.” Bush, who has declared himself “Education president”, and senior officals of his administration are warning that the United States will be unable to compete in the world without an educated workforce.

How to increase educational standards is a matter of debate in a country whose schools have no uniform national curriculum and are subject to a confusing variety of state and local controls. Most experts think that the problem lies at the elementary and high school'levels rather than with universities-but even their graduates show huge gaps in general knowledge. Among the root causes most frequently mentioned in education debates is the low respect in which U.S. society holds teachers-in contrast to Japan and Germany. In Japan teaching is a profession of high prestige(威望) and high pay. In the United States teachers are near the bottom of the society.

5.By“the United States came 12 out of 14”(Para. 2), the author means .      

A.the United States ranked 12th not 14th in the chemistry test

B.the United States ranked 12th in the chemistry test conducted by 14 countries

C.the United States progressed from 14th to 12th in the chemistry test

D.the United States ranked 12th in chemistry test and 14th in general science test

6.The cause of low educational level in America include the following EXCEPT that .      

A.some problems exist in primary and secondary education

B.society keeps teachers in low respect

C.America pays more attention to economy instead of education

D.America has no uniform national courses

7.Which of the following statements can be inferred from the passage?

A.President Bush carried out his promise made in his first State of Union message.

B.The education in Japan and Germany is in higher level.

C.According to Bush, the number of illiterates accounts for 9% of the total.

D.Teachers in the United States enjoy good treatment and great respect.

8.Which of the following is the right order of the least-first of the percent of illiterates?

A.Germany, Cuba, Nicaragua.         B.Germany, Nicaragua, Cuba.

C.Nicaragua, Japan, Cuba.            D.Cuba, Japan, Nicaragua.

题型:判断题

什么是泵的并联,有何特点?

题型:判断题

沿河及受水浸淹的路基的设计标高,一般应高出规定洪水频率计算水位( )以上。

A.0.2m
B.0.5m
C.0.8m
D.1.0m

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