问题 单项选择题 案例分析题

某研究者对护理专业学生选择职业时的价值取向进行研究。研究者选择武汉两所大学护理系的护理学生为研究样本。研究问卷选择修订的职业价值观量表,并进行了预试验,得到Cronbachα系数为0.9266。研究者采用现场发放问卷的资料收集方法。

几种抽样方法比较来看,理论上抽样误差最小的方法是()。

A.方便抽样

B.分层抽样

C.目的抽样

D.整群抽样

E.系统抽样

答案

参考答案:B

选择题
阅读理解

Americans this year will swallow 15,000 tons of aspirin, one of the safest and most effective drugs invented by man. The most popular medicine in the world today, it is an effective pain reliever. Its bad effects are relatively mild and it is cheap.

For millions of people suffering from arthritis(关节炎), it is the only thing that works. Aspirin, in short, is truly the 20th-century wonder drug. It is also the second largest suicide drug and is the leading cause of poisoning among children. It has side effects that, although relatively mild, are largely unrecognized among users.

Although aspirin was first sold by a German company in 1899, it has been around much longer than that. Hippocrates, in ancient Greece, understood the medical value of the leaves and tree bark which today are known to contain salicylates(水杨酸碱), the chemical in aspirin. During the 19th century, there was a great deal of experimentation in Europe with this chemical, and it led to the introduction of aspirin. By 1915, aspirin tablets were available in the United States.

A small quantity of aspirin (two five-grain tablets) relieves pain and inflammation(炎症). It also reduces fever by interfering with some of the body’s reactions.

小题1:The passage is written to          .

A.suggests us using more aspirin

B.reminds us of the side effects of aspirin

C.gives us a whole view of aspirin

D.discusses the good effects of aspirin小题2:According to the author, aspirin         .

A.is very safe

B.first appeared in 1899

C.can be harmful to children

D.can hardly be dangerous小题3:Generally speaking, the author seems to be           .

A.in favor of aspirin

B.against the use of sapirin

C.not interested in aspirin

D.careful in using aspirin小题4:What is the best title for this passage?

A.How to Use Aspirin

B.Why I Take Aspirin

C.The Most Popular Medicine

D.The Side Effects of Aspirin