合理安排电缆段长，尽量减少电缆接头的数量，严禁在变电站电缆夹层、桥架和竖井等缆线密集

下列对语文常识解说有误的一项是（     ） 2分

A．“我知道。我带你们去。”小也兴高采烈地领着两位穿干部服的老者走进家门，“妈妈，来客人啦！”句中标点符号使用无误。

B．“通过把一首首脍炙人口的红歌展现在广大观众面前，让电视机前不同年龄段的观众神魂颠倒”这句话仅有成分残缺的语病。

C．“惊悉您病了，鄙人因故未能登门造访，请原谅。现托堂弟馈赠鲜花一束，祝早日康复”，这则信息一些用语虽文明但不得体。

D．“双塔闻名，鼎盛人文誉海内；三山造景，火红旅贸光桐城”是泉州城的“城市名片”，此联词性相同，结构相称，平仄相对。

下述不属于抗ENA抗体的是（）

A.抗Sm抗体

B.抗RNP抗体

C.抗SSA抗体

D.抗rRNP抗体

E.抗dsDNA抗体

慢性滤泡性结膜炎病变主要位于（）.

A.上穹隆

B.上睑结膜

C.下穹隆

D.下睑结膜

E.上下睑结膜弥漫病变

根据《保安服务管理条例》的规定，下列说法正确的是（）。

A.保安员在保安服务过程中，不允许接触商业秘密

B.不得泄露客户信息属于保安员的义务

C.不得泄露客户信息属于保安员的权利

D.泄露客户单位的秘密可能会给国家利益造成损害

E.对客户单位未明确要求保密的信息，保安员也不得泄露

Radiation occurs from three natural sources: radioactive material in the environment, such as in soil, rock, or building materials; cosmic rays; and substances in the human body, such as radioactive potassium in bone and radioactive carbon in tissues. These natural sources account for an exposure of about 100 millirems a year for the average American.
The largest single source of man-made radiation in medical x-rays, yet most scientists agree that hazards from this source are not as great as those from weapons-test fallout, since strontium-90 and carbon-14 become incorporated into the body, hence delivering radiation for an entire lifetime. (46) The issue is, however, by no means uncontroversial; indeed, the last two decades have witnessed intensified examination and dispute about the effects of low-level radiation.
A survey conducted in Britain confirmed that an abnormally high percentage of patients suffering from arthritis of the spine who had been treated with x-rays contracted cancer. Another study revealed a high incidence of childhood cancer in cases where the mother had been given x-rays. (47) These studies have pointed to the need to re-examine the assumption that exposure to low linear energy transfer presented only a minor risk.
Recently, examination of the death certificates of former employees of a West Coast plant which produces plutonium for nuclear weapons revealed markedly higher rates for cancers of the pancreas, lung, bone marrow and lymph systems than would have been expected in a normal population.
(48) While the National Academy of Sciences committee attributes these differences to chemical or other environmental causes, rather than radiation, other scientists maintain that any radiation exposure, no matter how small, leads to an increase in cancer risk. (49) It is believed by some that a dose of one rem, if sustained over many generations, would lead to an increase of one percent in the number of 1,000 disorders per million births.
In the meantime, regulatory efforts have been disorganized, fragmented, and inconsistent, characterized by internecine strife and bureaucratic delays. A Senate freport concluded that coordination of regulation among involved departments and agencies was not possible because of jurisdictional disputes and confusion. (50) One Federal agency has .been unsuccessful in its efforts to obtain sufficient funding and manpower for the enforcement of existing radiation laws, and the chairperson of a panel especially created to develop a coordinated Federal program has resigned.