前列腺哪叶增大易引起排尿困难A．左侧叶 B．右侧叶 C．中叶 D．前叶 E．后叶

下列选项中，具有止血功用的方剂有

A．归脾汤

B．槐花散

C．胶艾汤

D．犀角地黄汤

臂丛损害的常见电生理改变包括（）

A.感觉神经动作电位波幅降低

B.募集电位病理干扰相

C.下肢肌电图异常

D.受累肌肉神经源性损害

E.可见异常自发电位

Every newborn baby is dealt a hand of cards which helps to determine how long he or she will be allowed to play the game of life. Good cards will help those who have them to have a long and healthy existence, while bad cards will bring to those who have them terrible diseases like high blood pressure and heart disease. Occasionally, cards are dealt out that doom their holders to an early death. In the past, people never knew exactly which cards they had been dealt. They could guess at the future only by looking at the kind of health problems experienced by their parents or grandparents.

Genetic testing, which makes it possible to find dangerous genes, has changed all this. But, until recently, if you were tested positive for a bad gene you were not obliged to reveal this to anyone else except in a few extreme circumstances. This month, however, Britain became the first country in the world to allow life insurers to ask for test results.

So far, approval has been given only for a test for a fatal brain disorder known as Huntington’s disease. But ten other tests (for seven diseases) are already in use and are awaiting similar approval.

The independent body that gives approval, the Department of Health’s genetics and insurance committee, does not have to decide whether the use of genetic information in insurance is ethical. It must judge only whether the tests are reliable to insurers. In the case of Huntington’s disease the answer is clear-cut. People unlucky enough to have this gene will die early, and cost life insurers dearly.

This is only the start. Clear-cut genetic answers, where a gene is simply and directly related to a person’s risk of death, are uncommon. More usually, a group of genes is associated with the risk of developing a common disease, dependent on the presence of other genetic or environmental factors. But, as tests improve, it will become possible to predict whether or not a particular individual is at risk. In the next few years researchers will discover more and more about the functions of individual genes and what health risks — or benefits — are associated with them.

What does the word “cards” (Line 1, Para. 1) refer to（）

A. Diseases

B. Genes

C. Problems

D. Tests

设备润滑“五定”指的是（）。

A、定点、定法、定标、定期、定人

B、定人、定时、定点、定质、定量

C、定点、定法、定时、定质、定量

D、定点、定法、定时、定质、定天

类风湿关节炎

A．关节病变呈游走性，可同时侵犯较多关节，反复发作后逐渐变成关节畸形
B．关节病变主要在滑膜，然后波及关节软骨和骨组织，反复发作后可并发心脏瓣膜疾患
C．关节软骨变性是出现最早也是最主要的病理改变
D．关节炎呈多发、对称性，滑膜炎是最早、最主要的病变
E．关节病变主要发生于滑膜、关节囊、肌腱、韧带的骨附着电点，易发生钙化，