计算半圆的周长就是计算整圆周长的一半。[ ]

题型:判断题

问题:

计算半圆的周长就是计算整圆周长的一半。[ ]

考点:圆的周长
题型:判断题

1996年,世界上诞生了第一只克隆羊──多莉,你知道它是哪个国家的吗?(  )

A.中国

B.法国

C.德国

D.英国

题型:判断题

阅读理解。

                                      Commencement (毕业典礼) is a time for idealism.

     But economic reality is cruel everywhere; especially for new graduate. They have been told

repeatedly that a college degree is an open sesame(芝麻) to the global economy. But that's not

necessarily so, according to new research by two economists at he Massachusetts Institute of

Technology, Frank Levy and Peter Temin.

     It is true that people with college degrees make more money than people without degrees.

The gap has narrowed somewhat in recent years, which is disturbing. But the earning power of

college graduates still far outpaces that of less-educated workers.

     The bad news, though, is that a college degree does not ensure a bigger share of the economics

pie for many graduates. In recent decades Mr. Levy and Mr. Temin show, only college-educated

women have seen their income grow in line with economy wide gains in productivity. The earnings

of male college graduates have failed to keep pace with productivity gains.

     Instead, a huge share of productivity growth, which expands the nation's income, is going to

Americans on the top of the income scale. In 2005, the latest year with available data, the top of

1 percent of Americans-whose average annual income was $ 1.1 million- took in 21.8 percent

of the nation's income, their largest share since 1929.

     Administration officials, and other politicians and economists, often, believe that income inequality,

reflects an education gap. But Mr. Levy and Mr. Temin show that in the case of men, the average

bachelor's degree is not enough to catch the rising tide of the global economy.

They argue that the real reason that inequality is worsening is the lack of strong policies that broadly

distribute economic gains. In the past, for example, a more progressive income tax and unions

promote equality. Positive measures have been eroding and new ones have not yet emerged, making

the income gap even greater.

     Mr. Levy and Mr. Temin conclude that only a new government policy can restore general

prosperity. That's a challenge to the nation's leader and today's graduates. America needs them to

contribute to the development of the nation in global economy.

1. The passage is mainly about that _______.

A. there is a big income gap between female and male college graduates in America.

B. college graduates find it hard to find an ideal job after graduation in America.

C. research shows that American government should take measures to ensure income

     equality for college graduates

D. college degrees are losing value in America.

2. What is the main idea of paragraph 5?

A. The whole nation has enjoyed a big income growth with the growth of productivity.

B. Much of the total income in America has been gained by a few very rich people.

C. A small part of people in America have income increase.

D. Upper class Americans contribute most to productivity growth.

3. The underlined word "eroding" in paragraph 7 probably means _______.

A. being gradually destroyed by wind or rain    

B. gradually reducing power

C. gradually disappearing                  

D. gradually not suitable

4. We can infer from the passage that _______.

A. female college graduates have higher income than male ones.

B. female college graduates have benefited from some governmental measures to ensure 

    their income growth.  

C. income tax can grantee income equality.

D. new measures and policies have been taken to promote income equality.

5. From the passage, some economists believe that the worsening income inequality is caused by ____.

A. lower college degree of college graduates  

B. lack of proper governmental policies

C. gender discrimination        

D. underdevelopment of economy and productivity.

题型:判断题

压力式温度计的测量范围是()。

A、-50~+600℃

B、-100~+600℃

C、-50~+500℃

D、-100~+500℃

题型:判断题

抢救中医生的口头医嘱护士( )

A.不能执行
B.立即执行
C.见处方后执行
D.向另一护士复诵无误后执行
E.向医生复诵确认后执行

题型:判断题

下列化学物质属于酮体的是()。

A.色氨酸

B.丙氨酸

C.乙酰乙酸

D.谷氨酰胺

E.尿酸

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