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某大学为了解在校本科生对参加某项社会实践活动的意向，拟采用分层抽样的方法，从该校四个年级的本科生中抽取一个容量为300的样本进行调查.已知该校一年级、二年级、三年级、四年级的本科生人数之比为 ，则应从一年级本科生中抽取____名学生.
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Physician-assisted Suicide The Supreme Court’s decisions on physician-assisted suicide carry important implications for how medicine seeks to relieve dying patients of pain and suffering. Although it ruled that there is no constitutional right to physician-assisted suicide, the Court in effect supported the medical principle of "double effect" , a centuries-old moral principle holding that an action having two effects—a good one that is intended and a harmful one that is foreseen—is permissible if the actor intends only the good effect. Doctors have used that principle in recent years to justify using high doses of morphine to control terminally ill patients’ pain, even though increasing dosages will eventually kill the patient. Nancy Dubler, director of Montefiore Medical Center, contends that the principle will shield doctors who "until now have very, very strongly insisted that they could not give patients sufficient mediation to control their pain if that might hasten death. " George Annas, chair of the health law department at Boston University, maintains that, as long as a doctor prescribes a drug for a legitimate medical purpose, the doctor has done nothing illegal even if the patient uses the drug to hasten death. "It’s like surgery," he says. "We don’t call those deaths homicides because the doctors didn’t intend to kill their patients, although they risked their death. If you’re a physician, you can risk your patient’s suicide as long as you don’t intend their suicide." On another level, many in the medical community acknowledge that the assisted-suicide debate has been fueled in part by the despair of patients for whom modem medicine has prolonged the physical agony of dying. Just three weeks before the Court’s ruling on physician-assisted suicide, the National Academy of Science (NAS) released a two-volume report, Approaching Death: Improving Care at the End of Life. It identifies the undertreatment of pain and the aggressive use of "ineffectual and forced medical procedures that may prolong and even dishonor the period of dying" as the twin problems of end-of-life care. The profession is taking steps to require young doctors to train in hospices, to test knowledge of aggressive pain management therapies, to develop a Medicare billing code for hospital-based care, and to develop new standards for assessing and treating pain at the end of life. Annas says lawyers can play a key role in insisting that these well-meaning medical initiatives translate into better care. "Large numbers of physicians seem unconcerned with the pain their patients are needlessly and predictably suffering," to the extent that it constitutes "systematic patient abuse." He says medical licensing boards "must make it clear that painful deaths are presumptively ones that are incompetently managed and should result in license suspension.\ According to the NAS’s report, one of the problems in end-of-life care is ______.
在2011年10月15日，A县政府根据《发展A县经济的实施规划》，以红头文件形式作出了一项《关于对A县几家工业企业进行调整的措施》的决定，其中决定将属于集体所有制的A县机床附件厂与属于国有企业的A县机械厂合并为A县机械总厂；A县机床附件厂不服县政府的这一决定，认为合并决定事先未征得他们的同意，侵犯了企业的自营自主权，遂向A县法院提起行政诉讼，A县政府有关领导得知这一情况后立即告诉县法院，这一合并决定是为了改革和发展A县经济、解决县机械厂的经济困难作出的，县机床附件厂应当顾全大局，服从县政府的决定，同时，县政府要求县法院应与县政府态度一致，维持县政府的改革措施，对县机床附件厂的起诉不予受理。 问：(1)A县法院是否有权受理此案，并说明理由 (2)A县法院是否必须服从县政府的意见，并说明理由
设x＞0，试证：2sinx+ex-e-x＞4x．
Computer and School Education There was a time when parents who wanted an educational present for their children would buy a typewriter, a globe or an encyclopedia set. Now those (51) seem hopelessly old-fashioned; this Christmas, there were a lot of personal computers under the tree. (52) that computers are the key to success, parents are also financially insisting that children (53) taught to use them in school-as early as possible. The problem for schools is that when it (54) computers, parents don’t always know best. Many schools are (55) parental impatience and are purchasing hardware without sound educational planning so they can say, "OK, we’ve moved into the computer age." Teachers found themselves caught in the middle of the problem-between parent pressure and (56) educational decisions. Educators do not even agree (57) how computers should be used. (58) money is going for computerized educational materials (59) research has shown can be taught just as well with pencil and paper. (60) those who believe that all children should have access to computers, warn of potential dangers to the very young. The temptation remains strong largely because young children (61) so well to computers. First graders have been seen willing to work for two hours on math skills. Some have an attention span of 20 minutes. (62) school can afford to go into computing, and creates yet another problem: a division between the haves and have-nots. Very (63) parents are agitating (64) computer instruction in poor school districts, (65) there may be barely enough money to pay the reading teacher.
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