问题 多项选择题

某型号螺线的内径设计尺寸为16mm,误差为(+0.3,-0.3)mm。现对完成该内径加工工序的工序能力进行评估,通过对随机抽取的样本进行测算,样本平均值和公差中心重合,样本标准差为0.25mm

在该螺母的生产过程中,影响工序质量的因素可能是()。

B.方法 

C.价格 

D.机器

答案

参考答案:A, B, D

解析:在质量管理过程中,影响工序质量的因素主要包括:人(Man)、机器(Machine)、原料(Material)、方法(Method)、测量(Measurement)和环境(Environment),简称5MIE。

多项选择题
阅读理解

Most people feel lonely sometimes, but it usually only lasts between a few minutes and a few hours. This kind of loneliness is not serious. In fact, it is quite normal. For some people, though, loneliness can last for years. Now researchers say there are three different types of loneliness.

The first kind of loneliness is temporary. This is the most common type. It usually disappears quickly and does not require any special attention. The second kind, situation-for example, family problem, the death of a loved one, or moving to a new place. Although this kind of loneliness can cause physical problems, such as headaches and sleeplessness, it usually does not last for more than a year.

The third kind of loneliness is the most severe. Unlike the second type, chronic (the opposite of “temporary”) usually lasts more than two years and has no specific cause. People who experience habitual loneliness have problems socializing and becoming close to others. Unfortunately, many chronically lonely people think there is little or nothing they can do to improve their condition.

Psychologists agree that one important factor in loneliness is a person’s social contacts, for example, friends, family members, co-workers, etc. we depend on various people for different reasons. For instance, our families give us emotional support, our parents and teachers give us guidance, and our friends share similar interests and activities. However, psychologists have found that, though lonely people may have many social contacts, they sometimes feel they should have more. They question their popularity.

Psychologists are trying to find ways to help habitually lonely people for two reasons: they are unhappy and unable to socialize and there is a connection between chronic loneliness and serious illness such as heart disease, while temporary and situational loneliness can be a sad, and sometimes dangerous condition.

小题1:How would you treat temporary loneliness according to the passage?     

A.Talk to friends.

B.Just ignore it.

C.Go to see a doctor.

D.Ask your teachers for guidance.小题2:“It” in the last sentence of the second paragraph refers to ___________.

A.temporary loneliness

B.situational loneliness

C.a new place

D.sleeplessness小题3:Why do psychologists want to help chronically lonely people?

A.Chronic loneliness can cause family problems.

B.Chronic loneliness can cause serious illness

C.Chronic loneliness can not be overcome.

D.Chronic loneliness is incurable.小题4:What is the best title for the passage?

A.Three kinds of loneliness

B.Loneliness and disease

C.Loneliness and social contacts

D.Chronic loneliness