某公司发行总面额为500万元的5年期债券,票面利率为6%,每年付息一次,发行费率为3

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问题:

某公司发行总面额为500万元的5年期债券,票面利率为6%,每年付息一次,发行费率为3%,所得税税率为25%,债券按面值发行,该公司的债券资本成本为()。

A.6%

B.6.38%

C.4.78%

D.4.64%

考点:中级商业经济经济师中级商业经济专业知识与实务
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不同的社会角色承担着不同的社会责任。

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17世纪,意大利物理学家伽利略根据实验指出:在水平面上运动的物体之所以会停下来,是因为受到摩擦阻力的缘故.这里的实验是指“伽利略斜面实验”,关于该实验,你认为下列陈述正确的是(  )

A.该实验是一理想实验,是在思维中进行的,无真实的实验基础,故其结果是荒谬可笑的

B.该实验是以可靠的事实为基础,经过抽象思维,抓住主要因素,忽略次要因素,从而更深刻地反映自然规律

C.该实验否定了亚里士多德“力是维持物体运动的原因”的错误概念

D.该实验为牛顿第一定律的提出提供了有力的实验依据

题型:单项选择题

阅读理解。

     Women have been making scientific discoveries since ancient times. Twelve women have won the Nobel

Prize for science, one of the highest honors in the world. Some women scientists never married, some worked with the ir husbands, and othe rs raised large families. It has been difficult for women to be successful scientists.

     In the early 1800s in England, Mary Anning became one of the first women recognized for her discoveries

about the ancient history of the earth. Mary and her fathe r collected fossils (化石) in the ir village on the south

coast of Great Britain. Fossils are parts of plants or animals that have been saved in rocks for millions of years.

     When she was only twelve years old, Mary became the first person to find the almost complete skeletons

(骨架) of several animals that no longer existed on earth. She didn't become famous for her discoveries at that

time because she often sold her fossils to get money to support her family.

     In 1891, a young Polish woman named Marie Sklodowska traveled to Paris to study physics. She did so

because she could not get a college education in Poland. She began working in the laboratory of a man named

Pierre Curie. Marie and Pierre Curie got married and made many discoveries together. the y received the

Nobel Prize for Physics in 1903 along with anothe r scientist. Marie Curie became the first person to be

awarded a second Nobel Prize in 1911, this time for Chemistry. Marie Curie was one of the few women at the

time who became famous as a scientist.

1. the author believes that women scientists ______.

A. have more opportunities to become successful

B. can not get the highest honors in the world

C. go through difficulties to be successful

D. had better pay more attention to the ir families

2. Mary Anning was one of the first women to ______.

A. win the Nobel Prize for Science after getting married

B. make achievements in the study of ancient Earth

C. research animals and the ir bones

D. study the mystery of all kinds of plants

3. Mary Anning failed to be famous for her discoveries of fossils when she was 12 because ______.

A. nobody recognized them

B. the y weren't worth studying

C. she didn't want to be known to anyone

D. she sold the m for money

4. What can we learn about Mary Sklodowska?

A. She studied physics in Poland and got a college education.

B. She received the Nobel Prize for Physics in 1903 on her own.

C. She only got one Nobel Prize during her lifetime.

D. She made many discoveries after she got married.

5. What's the passage mainly about?

A. Ancient discoveries.

B. Women scientists.

C. Successful marriages.

D. Different prizes.

题型:单项选择题

老年人使用皮质激素类药物( )

A.加重耳毒性反应

B.发生低血糖反应

C.加重青光眼

D.可诱发哮喘

E.可致水肿、高血压

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再热蒸汽参数的变化对机组的安全经济性有什么影响?

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