辙叉由（）和（）组成。

2012年11月份刚刚在深交所上市的某股份公司，在2013年1月中旬发布的业绩报告中称，公司下半年的净利润比2012年同期下降94%。随后，该公司的股票价格从10.5元跌到了9元。这说明(　　)

①投资股票具有高风险　                         

②企业盈利影响股票价格　

③投资者只能从股票价格上升带来的差价中获得收益　

④股票价格影响企业竞争力

A．①②

B．③④

C．①③

D．②④

不是矽肺诊断主要依据的是( )。

A．接触粉尘的职业史
B．临床症状
C．CT检查
D．胸片
E．肺功能检查

All over the world, and for many different reasons, there are millions of people who rarely or never eat meat. These people are called vegetarians. To people who eat meat, being a vegetarian may seem like a very strange thing, diets for several different reasons.

First, vegetarians have an enormous health advantage. One of the major health problems in modern societies is not too much protein but too much fat, especially in the form of animal fats. Medical evidence suggests that animal fats, including butter, contribute to the development of cholesterol in the human body. High amount of cholesterol seem to be part of the cause of heart disease. Most vegetarians have low level of cholesterol. High amounts of animal fats also seem to lead to certain kinds of cancer, and vegetarians are typically less vulnerable to these cancers than people who eat a lot of meat. Overall, studies comparing the health of vegetarians and meat-eaters show that the meat-eaters are twice as likely to die of heart disease as vegetarians are.

Better health is one reason that people choose to become vegetarians. Another reason is religion. Some religions forbid the eating of meat. The largest of these is the Hindu religion, which has about 600 million believers in the world. Although not all Hindus are vegetarian, many are, and there are many believers of other religions such Buddhism and even some Christian religions that also do not eat meat.

Many vegetarians do not eat meat simply because they do not like the taste of it. They have no religious or philosophical reasons; they just do not like meat. Another important reason that vegetarians give for not eating meat is the health advantages that were given above. Lastly, there are many people who do not eat meat because they just do not like the idea of killing animals for food. They believe that life, all life, is valuable , and that we do not have to destroy life to feed ourselves when there are other good sources of food.

小题1:According to the passage, people choose to be vegetarians for the following reasons EXCEPT________.

A．they want to stay healthy

B．they are too kind to put the idea of killing animals

C．they live in areas where meat supply is not adequate

D．they should not eat meat due to their religious belief小题2:Which of the following is true according to Paragraph 2 ?

A．Vegetarians enjoy a more healthy life than the meat eaters.

B．Heart disease and cancer are caused by large amounts of protein.

C．There are twice as many meat-eaters as vegetarians who die of cancer.

D．There are less health problems in modern society due to advanced medical care.小题3:What does “vulnerable” mean in Paragraph 2?

A．Having low level of cholesterol.

B．Having high level of cholesterol.

C．Having weak ability to resist diseases and harms.

D．Having strong ability to resist disease and harms.小题4:It can be inferred from the passage that __________.

A．being a vegetarian may be a very strange thing

B．vegetarians eat meat on some special occasions

C．all vegetarians have reasons for their not eating meat

D．most vegetarians believe that life without meat is happy.

关于骨折功能复位的标准应除外

A．旋转及分离移位必须完全矫正

B．向侧方成角与关节活动方向一致可自行矫正

C．前臂双骨折要求对位对线都好

D．长骨干要求对位至少1/3，干骺端对位要求达3/4左右

E．成人下肢短缩大于1cm，前后成角大于15°

下列有关细胞膜的叙述中，最能体现细胞膜结构特点的是（）

A.选择透过性

B.胞吞和胞吐

C.保护作用

D.主动运输