表演区里，教师和幼儿共同制作和收集了各种帽子、面具、头饰、假发、项链、乐器……这体现了材料投放的(    )。

伴热管与主管宜采用(    )安装，并应自行排液。

法人单位不能作为个人保证贷款的保证人。（  ）

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.

Broadly speaking, the genes more active in the lonely _______

若正在接受IFNα治疗的乙肝患者意外妊娠，建议向妊娠妇女和家属充分告知风险，由其决定是否继续妊娠，若决定继续妊娠则要换用

性微寒，既能治闭经、癥瘕，又能治中风瘫痪的药物是（ ）

按科尔伯格的观点，划分儿童的道德发展阶段主要看其()

关于5-HT重摄取抑制剂类抗抑郁药的手性异构体及其代谢产物的说法，错误的是（   ）

申请除董事长、监事会主席、独立董事以外的董事、监事的任职资格，应当具有从事期货、证券等金融业务或者法律、会计业务（  ）年以上经验，或者经济管理工作（  ）年以上经验。

事故发生单位的安全生产管理人员未履行安全生产管理职责，发生了较大事故，可处以的罚款为(  )。

According to Chomsky, ________refers to the actual realization of user's knowledge of the rules of his language in utterances.