经皮吸收的主要影响因素有() A.化学物质分子量的大小 B.化学物质的脂/水分配系数

题型:单项选择题

问题:

经皮吸收的主要影响因素有()

A.化学物质分子量的大小

B.化学物质的脂/水分配系数

C.皮肤和血流和组织液流动的速度

D.皮肤完整性和通透性

E.以上均是

考点:北京住院医师公共卫生学Ⅰ阶段卫生毒理学卫生毒理学题库
题型:单项选择题

下列各项中不符合肺心病体征的是()。

A.颈静脉充盈

B.肺动脉区第二音(P2)亢进

C.剑突下示心脏搏动

D.下肢水肿

E.心浊音界向左下扩大

题型:单项选择题
Read the following text and choose the most suitable heading from the list A--F for each paragraph. There is one extra heading which you do not need.
(考生注意答题卡上的题号要与本题填涂时一致,从76题涂卡)
A. TV’s Influence on Children’s Life
B. Argument Against Violence on TV
C. TV’s Influence on People’s Leisure Activities
D. The Importance of Violence in Real Life
E. Attractions of Violence on TV
F.  TV’s Power
小题1:_________
Television has probably been the most powerful medium in shaping the new community. The electronic community gives us our mutual friends, our significant events and our daily chats. The “produced” relationships of television families become our models for intimacy. We know media stars better than we know our neighbors. Most of us can discuss their lives better than we can discuss those of our relatives. We think a man who plays a doctor on TV actually know something about medicine
小题2:_________
TV isolates people in their spare time. People spend more time watching music videos but less time making music with each other. People in small town now watch international cable networks instead of driving to their neighbor’s house for cards. Women watch soaps instead of attending church circles or book clubs. When company comes, the kids are sent to the TV room with videos.
小题3:_________
Parent are not the main influence in the lives of their children. Some of the first voices children hear are from the television, the first street they know is Sesame Street. A child playing Nintendo is learning different lessons than a child playing along a creek or playing dominoes with a grandfather.
小题4:_________
The time devoted to violence on TV in no way reflects its importance in real life. In real life, most of us exercise, work, visit our friends, read, cook and eat and shop. Few of us spend any significant amount of our time solving murders or fleeing psychotic killers. On television there are many more detective and murderers than exist in the real world. A rule of thumb about violence is “If it bleeds, it leads.” Violence captures viewers’ attention. Our programs have become increasing violent.
小题5:_________
Some might say that there is nothing new under the sun. Of course, in a narrow sense, they are correct. There have always been murderers, and stories about violence have been the theme of literature and song. However, things are different now. Children are exposed to hundreds of examples of violence every day. The frequency and intensity of these images is unprecedented in the history of humanity. We have clear records that this exposure makes it more likely that children will be violent and increase their fear levels about potential violence.
题型:单项选择题

早期肾结核唯一的阳性表现为()

A.肾区包块

B.结核中毒症状

C.大量血尿

D.尿中有结核杆菌

E.肾盂造影有破坏病灶

题型:单项选择题

从文献记载看,什么时期古人已从植物种子中获取液态油?

题型:单项选择题

危害安全的不良因素有哪些?

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