慢性菌痢是指急性菌痢病程迁延，病情未愈者，其迁延期为

人民群众是历史的主体和历史的创造者，这个观点的理论出发点是（）。

In _______drills, the students change a given structure in a way so that they are exposed to other similar structures, which also helps them have a deeper understanding of how the structures are formed and how they are used.

根据工程质量事故按事故造成损失的程度分级，下列情况中不属于特别重大事故的是（  ）。

以下不属于银行公司治理组织架构主体的是（    ）。

基本养老金支付水平的影响因素是（  ）。
(1)本人指数化月平均缴费工资
(2)家庭需要赡养的人数
(3)当地上年度职工月平均工资
(4)个人账户积累
(5)企业年金的给付水平

结构施工阶段昼间施工的噪声限值应为(　　)dB(A)。

熊去氧胆酸治疗胆固醇型胆囊结石的最佳服用方法是（    ）

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.

What message does Dr. Cole seem to convey by the mechanism?

根据中国国际航空股份有限公司的规定，无论是头等舱还是商务舱，旅客每人最多携带3件手提行李。（）

患儿10岁，1小时前从大型玩具跌落导致11、21脱落，家长把脱落门牙放入矿泉水瓶中保存就诊。患儿神清合作，面部口周有软组织挫伤，无头痛、头晕。局部牙槽窝完整，内有血凝块，离体牙完整，无明显污物，牙根发育近完成。
2周复查时出现牙体变暗，应采取何种治疗