题目内容

Why are publishers making their books freely available？

A. They want to make money.
B. They don't like to lose their audience.
C. They are competing for tim.
D. They try to win more freedom.

查看答案

搜索结果不匹配？点我反馈

更多问题

What does Ms. Davies mean by saying "Non-fiction as it is cutting off a whole route into reading, especiaily for boys."？

A. Young people, especially boys can't easily get access to good books of non-fiction.
B. A lot of good non-fiction books are coming out into the market.
C. Such kind of non-fiction are eroding into the reading habits of young people especially boys.
D. Non-fiction books have been isolated from our reading experience.

查看答案

Which of the following statements is true according to this passage？

A. Most of the parents under survey think children should read more non-fiction than fiction.
B. National Literacy Trust encourages children to treat reading as a labor of love.
C. The stares-quo of books of non-fiction in the market is satisfying.
D. Non-fiction contributes more than fiction to the development of children's intellect.

查看答案

Research into DNA has had a significant impact on medicine. Through recombinant DNA technology, scientists can modify microorganisms so that they become so-called factories that produce large quantities of medically useful drugs. This technology is used to produce insulin, which is a drug used by diabetics, and interferon, which is used by some cancer patients. Studies of human DNA are revealing genes that are associated with specific diseases, such as breast cancer. This information is helping physicians to diagnose various diseases, and it may lead to new treatments. For example, physicians are using a technology called chimeriplasty, which involves a synthetic molecule containing both DNA and RNA strands, in an effort to develop a treatment for a form. of hemophilia.
Forensic science uses techniques developed in DNA research to identify individuals who have committed crimes. DNA from semen, skin, or blood taken from the crime scene can be compared with the DNA of a suspect, and the results can be used in court as evidence.
DNA has helped taxonomists determine evolutionary relationships among animals, plants, and other fife forms. It is useful for this purpose, because closely related species have more similar DNA than do species that are distantly related. One surprising finding to emerge from DNA studies is that vultures of the Americas are more closely related to storks than to the vultures of Europe, Asia, or Africa.
Techniques of DNA manipulation are used in farming, in the form. of genetic engineering and biotechnology. Strains of crop plants to which genes have been transferred may produce higher yields and may be more resistant to insects. Cattle have been similarly treated to increase milk and beef production, as have hogs, to yield more meat and less fat.
Despite the many benefits offered by DNA technology, some critics argue that its development should be monitored closely. One fear raised by such critics is that DNA fingerprinting could provide a means for employers to discriminate against members of various ethnic groups. CritiCs also fear that studies of people' s DNA could permit insurance companies to deny health insurance to those people at risk for developing certain diseases.
The use of DNA technology in agriculture has also sparked controversy. Some people question the safety, desirability, and ecological impact of genetically altered crop plants. In addition, animal rights groups have protested against the genetic engineering of farm animals.
Despite these and other areas of disagreement, many people agree that DNA technology offers a mixture of benefits and potential hazards. Many experts also agree that an informed public can help assure that DNA technology is used wisely.
The author wants to tell us in Para. 1～4______.

A. DNA's functions
B. DNA's applications
C. DNA's research
DNA's techniques

查看答案

There is an allegation that______.

A. Kojo Annan benefited illegally from oil-for-food program
B. Kofi Annan was involved in some illegal activities in oil-for-food program
C. U. N. was not active in the oil-for-food program
D. U. N. did not monitor effectively what was imported into Iraq under the program

查看答案

Why are publishers making their books freely available？

A. They want to make money. B. They don't like to lose their audience. C. They are competing for tim. D. They try to win more freedom.

What does Ms. Davies mean by saying "Non-fiction as it is cutting off a whole route into reading, especiaily for boys."？

Which of the following statements is true according to this passage？

There is an allegation that______.

A. They want to make money.
B. They don't like to lose their audience.
C. They are competing for tim.
D. They try to win more freedom.