带压堵漏技术可以在保持生产运行连续进行的情况下, 将泄漏部位密封止漏,操作简便、安全迅 速、社会和经济效益高,在冶金、化工、电力、石油等行业中已广泛应用。下列情况中,属于能采取带压堵漏技术进行处理的是( )。
带压堵漏技术可以在保持生产运行连续进行的情况下, 将泄漏部位密封止漏,操作简便、安全迅 速、社会和经济效益高,在冶金、化工、电力、石油等行业中已广泛应用。下列情况中,属于能采取带压堵漏技术进行处理的是( )。
关于股权投资基金的基本运作流程,下列说法错误的是( )。
Passage1
Lonely people, it seems, are at greater riskthan the gregarious of developing illnesses associated with chronicinflammation, such as heart disease and certain cancers. A paper published lastyear in the Public Library of Science, Medicine, shows the effect on mortalityof loneliness is comparable with thatof smoking and drinking after examining the results of 148 previous studies andcontrolled for factors such as age and pre-existing illness.
Steven Cole of the University ofCalifornia, Los Angeles, thinks he may know why this is so. He told theAmerican Association for the Advancement of Science meeting in Washington,D.C., about his work studying the expression of genes in lonely people. Dr.Cole harvested samples of white blood cells from both lonely and gregariouspeople. He then analysed the activity of their genes, as measured by theproduction of a substance called messenger RNA. This molecule carries instructions from the genes telling a cellwhich proteins to make. The level of messenger RNA from most genes was the samein both types of people. There were several dozen genes, however, that wereless active m the lonely, and several dozen others that were more active.Moreover, both the less active andthe more active gene types came from a small number of functional groups.
Broadly speaking, the genes less active in thelonely were those involved in staving off viral infections. Those that weremore active were involved in protecting against bacteria. Dr. Cole suspectsthis could help explain not only why the lonely are iller, but how, inevolutionary terms, this odd state of affairs has come about.
The crucial bit ofthe puzzle is that viruses have to be caught from another infected individual andthey are usually species-specific. Bacteria, in contrast, often just lurk inthe environment, and may thrive on manyhosts. The gregarious are therefore at greater risk than the lonely ofcatching viruses, and Dr. Cole thussuggests that past evolution has created a mechanism which causes white cellsto respond appropriately. Conversely, the lonely are better off ramping uptheir protection against bacterialinfection, which is a bigger relative risk to them.
What Dr. Cole seemsto have revealed, then, is a mechanism by which social environment reachesinside a person's body and tweaks its genome so that it responds appropriately.It is not that the lonely and the gregarious are genetically different fromeach other. Rather, their genes are regulated differently, according to howsociable an individual is. Dr. Cole thinks this regulation is part of a widermechanism that tunes individuals to the circumstances they find themselves in.
Dr. Cole made an analysis of the activity of the genes by_____.
平时纪律比较差的图图在这次手工课上表现得特别出色,不仅很好地完成了手工课上老 师的要求,还帮助了其他的小朋友。胡老师表扬道:“每种色彩,都应该盛开。”胡老师的做 法( )。
正确,关注了幼儿的个性发展
错误,忽视了幼儿的品行发展
正确,关注了幼儿的动作发展
错误,忽视了幼儿的身心健康
男,62岁。双下肢乏力半年,右侧明显。近2个月来步态不稳,右手不能系纽扣。无外伤史,无发热。查体:颈背部无明显压痛,两上肢前臂、手及上臂尺侧皮肤感觉减退,躯干部及双下肢感觉减退,四肢肌力减弱,左上肢肌力3级,右上肢及双下肢肌力4级,肌张力增高,肱二、三头肌反射亢进,双侧膝腱反射亢进,右侧髌阵挛阳性,双侧Babinski征阳性。该患者最可能的诊断是( )
脑卒中
脊髓型颈椎病
神经根型颈椎病
椎动脉型颈椎病
交感神经型颈椎病