| Two techniques have recently been
developed to simplify research and reduce the number of nonhuman primates needed
in studies of certain complex hormonal reactions. One technique involves the
culturing of primate pituitary cells and the cells of certain human turnouts. In
the other, animal oviduct tissue is transplanted under the skin of laboratory
primates. Both culturing techniques complement existing methods of
studying intact animals. With an in vitro culturing technique, researchers are deciphering how biochemical agents regulate the secretion of prolactin, the pituitary hormone that promotes milk production. The cultured cells survive for as long as a month, and they do not require serum, a commonly used culture ingredient that can influence cellular function and confound study results. One primate pituitary gland may yield enough cells for as many A. currently available but prohibitively expensive B. currently available and widely used C. theoretically possible but of no real scientific value D. theoretically possible but as yet technically impossible [单选题]
某心衰病人长期口服地高辛，疗效较好，后因三叉神经痛应用苯妥英钠，结果出现心衰症状，这是因为 A.苯妥英钠有致心衰的不良反应 B.苯妥英钠与地高辛竞争血浆蛋白 C.苯妥英钠减少地高辛的吸收 D.苯妥英钠促进地高辛排泄 E.苯妥英钠诱导肝药酶加速地高辛代谢 [不定项选择题]共用题干
Music Used As a Healing Therapy
1 Music has long been used to treat patients suffering from different problems.In 400 BC,its healing properties were documented by the ancient Greeks.More recently,in both world wars in the last century, medical workers used music therapy（疗法）with people suffering from trauma（外伤）.Currently, it is used as a treatment for many diseases,such as cancer,and it has also been used with patients with long-term pain and learning disabilities. 2 There is growing evidence that music can cause physical changes to the body which can improve our health.In the Welcome Trust study,which took place over three years at the Chelsea and Westminster hospital in London,patients were asked to listen to musical performances.As a result,it was found that stress levels were significantly reduced,recovery times were improved,and fewer drugs were needed. 3 These very positive results are partly due to general well-being（良好的健康状况）.It is already accepted that when people feel happy and have a positive approach to life,they are more likely to feel better and recover from disease quickly.Music increases this feeling of joy and adds to the recovery process. 4 However,not all these benefits can be attributed to an increase in general well-being.Music has other effects which have not yet been understood. According to Professor Robertson,a scientist and musician, some effects of music are mysterious and are,therefore,being investigated further. It has been suggested that the sounds and rhythms of music help stimulate the brain and send electrical messages to the muscles. 5 Science,however,demands facts and hard evidence.Many in the medical profession have not yet recognized the healing benefits of music,since reports have been based mainly on various stories of evi- dence.These new studies could provide proof to doctors that music is a suitable treatment for many condi- tions. One day doctors may even"prescribe"（开处方）music,but that could be a long time in the future. Music can treat patients partly because________. A.recover from disease quickly B.there is not enough hard evidence C.use their minds actively D.it improves general well-being E.listen to musical performances F.it brings many other benefits [单选题]使用风动车卸道砟时,卸砟运行速度应控制在（ ）。
A.5～15 km/h B.8～15 km/h C.10～25 km/h D.25 km/h [单项选择]患儿，1岁。发热4小时，体温39.4℃，鼻塞流涕，突发抽风、神昏，持续约2分钟。本证的发生体现了万全关于小儿生理病理学说中的（）。
A. 肝常有余，心常有余 B. 肺常不足，脾常不足 C. 肾常不足 D. 阳常有余 E. 阴常不足 [简答题]物流客户服务质量的衡量？
[多选题]走出可能产生跨步电压的区域应采用的正确方法是( )。
A.单脚跳出 B.双脚并拢跳出 C.大步跨出 [单选题]48. 上消化道出血病人，提示有活动性出血的是
A.黑便量增加伴肠鸣音亢 B.肿大的脾脏缩小后恢复 C.网组织细胞持续下降 D.血细胞比容继续升高 E.血尿素氮持续下降 我来回答: 提交
|
