甲公司将室内装修改造项目的内部装潢和钢结构施工分别发包给乙、丙两家公司,由于室内区域较为狭小,乙、丙两家公司的作业人员在作业过程中可能危及对方作业安全。关于项目发包和交叉作业安全管理的说法,正确的是( )。
外伤导致颅底骨折,哪项是错误的
甲公司将室内装修改造项目的内部装潢和钢结构施工分别发包给乙、丙两家公司,由于室内区域较为狭小,乙、丙两家公司的作业人员在作业过程中可能危及对方作业安全。关于项目发包和交叉作业安全管理的说法,正确的是( )。
刘老师日常花销大,于是用假名在培训机构上课,挣钱补贴生活花销。这种行为( )
不正确,可能影响正常的教育教学活动
正确,刘老师可以在业余时间做任何事
正确,培训机构聘任刘老师做老师,不是利用职务之便谋取私利
不正确,刘老师的这种行为违反了教师职业道德
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.
What can we know about viruses and bacteria from the fourth paragraph?
下列关于建筑层数和耐火等级的说法,不正确的是( )。
某企业新员工李某在作业过程中因工负伤,经鉴定为六级劳动功能障碍。李某尚在试用期内,企业未为其缴纳工伤保险。依据《工伤保险条例》的规定,下列关于李某工伤保险待遇的说法中,正确的是( )。