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【正文】 DNA fingerprinting was introduced in 1987 as a method to identify individuals based on a pattern seen in their DNA, the molecule of which genes are made. DNA is present in every cell of the body except red blood cells. DNA fingerprinting has been used successfully in various ways, such as to determine paternity where it is not clear who the father of a particular child is. However, it is in the area of criminal investigations that DNA fingerprinting has potentially powerful and controversial uses.第十三篇答案:BCCAA第十四篇: education benefits only the intelligent, ambitious, and quicklearning people. and more evidence shows college education may not be the best thing for high school graduates. administrators encourage students to drop out. school graduates do not fit the pattern of college education. to the passage, the problems of college education partly originate in the fact that___. people have little motivation in pursuing a higher education. people are disappointed with the conventional way of teaching at college. school graduates who failed to be admitted to college. graduates who are selling shoes and driving taxis. the 2nd paragraph, “those who don‘t fit the pattern” refer to___. high school graduates went to college. used to question the value of college education. Some adventuresome educators and watchers have openly begun to suggest that college may not be the best, the proper, the only place for every young person after the pletion of high school. We may have been looking at all those surveys and statistics upside down, it seems, and through the rosy glow of our own remembered college experiences. Perhaps college doesn‘t make people intelligent, ambitious, happy, liberal, or quick to learn things—may it is just the other way around, and intelligent, ambitious, happy, liberal, quicklearning people are merely the ones who have been attracted to college in the first place. And perhaps all those successful college graduates would have been successful whether they had gone to college or not. This is heresy to those of us who have been brought up to believe that if a little schooling is good, more has to be much better. But contrary evidence is beginning to mount up. But college has never been able to work its magic for everyone. And now that close to half our high school graduates are attending, those who don‘t fit the pattern are being more numerous, and more obvious. College graduates are selling shoes and driving taxis; college students interfere with each other’s experiments and write false letters of remendation in the intense petition for admission to graduate school. Other find no stimulation in their studies, and drop out—often encouraged by college administrators. C. Function of instincts. 5. Which of the following is the best title for the passage? C. possibly bee a teacher D. her mother‘s musical ability 4. If a child inherits something from his mother, such as an especially sensitive ear, a peculiar structure of the hands or of the vocal organs, he will ____. B. a knowledge of mathematics 3. According to the passage, a child may inherit____. C. she takes part in all kind of activities A. she is emotionally shocked D. There are no connection between mother‘s nervous systems and her unborn child’s. B. It is utterly impossible for us to learn anything about prenatal development. 1. Which of the following statements is not true? In our discussion of instincts we saw that there was reason to believe that whatever we inherit must be of some very simple sort rather
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