【正文】 . author would probably consider research about the effects noise has on people to be ___. a nuisance against the law is a major problem about which nothing can be done. noise can be annoying， it is not a major problem. of the following best states the main idea of the passage？ author‘s attitude toward noise would best be described as ___. to be seen by by Why， then， is there not greater alarm about these dangers？ Perhaps it is because the link between noise and many disabilities or diseases has not yet been conclusively demonstrated. Perhaps it is because we tend to dismiss annoyance as a price to pay for living in the modern world. It may also be because we still think of hearing loss as only an occupational hazard. Of many health hazards to noise， hearing loss is the most clearly observable and measurable by health professionals. The other hazards are harder to pin down. For many of us， there may be a risk that exposure to the stress of noise increases susceptibility to disease and infection. The more susceptible among us may experience noise as a plicating factor in heart problems and other diseases. Noise that causes annoyance and irritability in health persons may have serious consequences for these already ill in mind or body. Racket， din clamor， noise， whatever you want to call it， unwanted sound is America‘s most widespread nuisance. But noise is more than just a nuisance. It constitutes a real and present danger to people’s health. Day and night， at home， at work， and at play， noise can produce serious physical and psychological stress. No one is immune to this stress. Though we seem to adjust to noise by ignoring it， the ear， in fact， never closes and the body still responds—sometimes with extreme tension， as to a strange sound in the night. academy has the right to accredit laboratories for DNA testing第十四篇答案：CBABB第十五篇： authorized laboratories can conduct DNA testing Academy of Sciences holds the stance that ____. data are yet to be collected from various ethnic groups to determine the likelihood of two different DNA samples ing form the same person data are yet to be collected form various ethnic groups to confirm the unlikelihood of two DNA samples ing from two individual members theoretically contradictory to what they have been studying arguable because two individuals of the same ethnic group are likely to have the same DNA pattern. Lewontin and Hartl， the current method ____. different individuals leave two DNA samples. different individuals of the same ethnic group may have the same DNA fingerprinting pattern fingerprinting can be unreliable when ____. easily escape conviction of guilt have to leave their fingerprints for further investigations In response to their criticisms， population geneticists Ranajit Chakraborty of the University of Texas in Dallas and Kenneth of Yale University in New Haven， Conn.， argued that enough data are already available to show that the methods currently being used are adequate. In January 1998， however， the federal Bureau of Investigation and laboratories that conduct DNA tests announced that they would collect additional DNA samples form various ethnic groups in an attempt to resolve some of these questions. And， in April， a National Academy of Sciences called for strict standards and system of accreditation for DNA testing laboratories. The controversy A controversy erupted in the scientific munity in early 1998 over the use of DNA （deoxyribonucleic acid ） fingerprinting in criminal investigations.