【单选题】

某石化企业在开展安全生产标准化建设过程中,在装置区内重新设置标准的安全警示标志。"禁止触摸”标志应选用(  )。

A.
A
B.
B
C.
C
D.
D
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参考答案
参考解析
【单选题】

“张老师在期末阶段组织学生举办.班级音乐会',并要求学生写出对他人表演的观后感和建议。”这种评价方式是()。

A.
互评
B.
自评
C.
测量评价
D.
定量评价
【单选题】

以下业务中,金融租赁公司不能经营的是(  )。

A.
固定收益类证券投资业务
B.
接受承租人的租赁保证金
C.
吸收非银行股东活期存款
D.
租赁物变卖以及处理业务
【单选题】

国际工程投标报价中,采用不平衡报价法进行报价时,可以报得高一些的能够早日结账收款的项目,不包括(   )。

A.
土石方工程
B.
机电设备安装工程
C.
基础工程
D.
开办费
【单选题】

依据《道路交通安全法》的规定,下列关于道路通行限速的说法,正确的是()。

A.
在高速公路行驶的拖拉机时速不得低于70公里
B.
高速公路限速标示标明的最高时速不得超过150公里
C.
残疾人轮椅车在非机动车道行驶时,最高时速不得超过15公里
D.
电动自行车在非机动车道行驶时,最髙时速不得超过20公里
【单选题】

关于资本市场线、证券市场线的理解,下列说法正确的是(  )。


A.
证券市场线反映了资产或者资产组含的收益与时间的相关性
B.
资本市场线反映了资产或资产组合的期望收益与其所含系统风险的关系
C.
证券市场线反映了资产或资产组合的期望收益与其所含系统风险的关系
D.
资本市场线反映了资产或者资产组合的收益与时间的相关性
【单选题】

有权对公安机关的侦查活动进行监督的是(        )。

A.

司法行政机关

B.

监察机关

C.

人民检察院

D.

人民法院

【单选题】

治疗指数表示()。

A.
毒效曲线斜率
B.
引起药理效应的阈浓度
C.
量效曲线斜率
D.
LD50与ED50的比值
E.
LD5至ED95之间的距离
【单选题】

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 _______

A.
helped to avoid infections resulting from viruses
B.
participated in guarding against bacteria
C.
came from a few different functional groups
D.
existed only as a small group ph?
【单选题】

安装在用户处的电能计量装置出现故障后,应通知(  )进行处理。

A.
设计单位
B.
施工企业
C.
建设单位
D.
供电企业
【单选题】

按施工项目成本的费用目标分类,环保部门对项目的罚款属于(  )。

A.
生产成本
B.
质量成本
C.
工期成本
D.
不可预见成本