三羧酸循环中有底物水平磷酸化的反应是（    ）

离合器是操纵曲柄连杆机构的关键控制装置，在设计时应保证（  ）。

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?

患者，男，36岁，使用林旦治疗疥疮，用药后需洗浴以洗去药液，洗浴的时间是

流水节拍无任何规律时组织的流水施工，其组织方式可称为(  )。

幼儿园的菲菲放学途中和小宇打闹，不小心将小宇推下台阶，造成小宇骨折。依据《学生伤害事故处理办法》，对于该事故应承担损害赔偿责任的主体是（）。

患者，男，66岁。BMI 124kg/m²，高血压病史5年，冠心病史3年，目前规律服用阿司匹林、贝那普利、氨氯地平、美托洛尔、阿托伐他汀、螺内酯、呋塞米、单硝酸异山梨酯治疗。患者饮酒饱餐后出现胸闷，心前区疼痛，自服1片硝酸甘油不能缓解，来急诊科就诊。查体：血压 163/83mmHg，心率 80次/分。临床诊断为：（1）心绞痛急性发作；（2）心功能不全、心功能Ⅲ级；（3）高血压病3级；（4）高脂血症。
该患者的治疗药物中，可抑制心肌重构，改善左室功能的药物是（ ）。

下列哪一个选项被确认为是人民民主专政的根本标志。（        ）

根据《外汇管理条例》的规定，对于特定主体，仅对其发生在中国境内的外汇收支和外 汇经营活动适用该条例。下列各项中，属于该特定主体的是(    )。

要坚持把（     ）作为正确处理改革、发展、稳定关系的结合点，使改革始终得到人民拥护和支持。

A．全面提高开放水平

B．完善社会主义市场经济体制。

C．大力发展生产力

D．改善人民生活

有机磷农药中毒瞳孔的变化是（    ）