马克思主义中国化的基本要求是 （     ）。

能特异性阻断电压门控Na⁺通道的物质是（）。

男性，70岁。进行性吞咽困难2个月，现仅能进行流质食物。查体：消瘦，锁骨上未触及肿大淋巴结，食管X线钡剂透视示食管中段黏膜破坏，充盈缺损，管腔狭窄。腹部超声波检查发现肝内有多发性转移瘤，提示来自食管癌的（）。

某男，55岁。见癫狂惊悸，喘咳痰稠、大便秘结。诊为痰火扰心所致。治宜逐痰降火，宜选用的中成药是（  ）

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 can we know about viruses and bacteria from the fourth paragraph?

能够将病原体从人或者其他动物传播给人的生物，如蚊、蝇、蚤类等是

下列灯具中，按其功能全向发光的是(     )。

（  ）是指投资者依据公司法，通过出资形成一个独立的公司法人实体，由公司法人实体自行或委托专业基金管理人进行管理的股权投资基金。

下列哪一项属于正常咀嚼周期的特征

一般情况下，中班一次集体教学活动的时间在(  )。

老年人，瘢痕性幽门梗阻，全身情况差，应首选的手术方式是(     )