国际工程中业主在招标文件中规定的暂定金额正确处理方式（  ）。

使细胞产生动作电位的前提是(    )

男，3岁。多汗乏力1年余，有2次肺炎病史，查体：胸骨左缘2～3肋间闻及3/6级收缩期杂音，肺动脉瓣区第二心音固定分裂，该患儿胸部X射线心影形态最可能是（   ）。

某企业拟年初一次性向银行存入一笔资金，期望第4年年末收回本利和1000万元。若年利率4%，按年复利计息，则企业年初应存入的资金是（  ）万元。

医学人道主义的核心内容中不包括哪一项

井下采掘作业，必须按照作业规程的规定管理顶帮。采掘作业通过地质破碎带或者其他顶帮破碎地点时，应当（   ）。

某女，60岁 。多饮、多食、多尿数年，现以善饥烦渴、口干舌燥为主 。治疗应配用

如果中央银行适当地利用政策手段，它能够使经济始终保持在充分就业水平。（　　）

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_____.

某公司发动员工针对作业场所存在的危险、有害因素进行有奖辨识。辨识结果是：办公室夏季温度过高；去毛刺工位除尘系统效果不佳；消防器材年久失修；公司缺少对员工的安全教育和培训；财务室防盗门损坏；车削工位地面有油渍。该公司针对上述辨识出的危险、有害因素采取以下措施：加大了安全生产投入，为办公室安装了空调系统；对去毛刺除尘系统进行了更新；购入了一批新的消防器材；聘请专家对员工进行安全教育和培训；对财务室的防盗门进行维修；车削工位地面安装防滑垫。下列项目中，应纳入安全生产费用使用范围的是（  ）。