为获得上市公司的控制股权而购买该公司股票，是基金投资的主要目的之一。 ( )

暑淫证候的表现是（）。

A.头昏沉，嗜睡，胸脘痞闷

B.口渴饮水，口唇鼻咽干燥

C.发热恶热，汗出，气短神疲

D.突发皮肤瘙痒、丘疹、痦痞

E.肠鸣腹泻，脘腹拘急冷痛

变量数列中，组距和组数的关系是（）。

A.组距的大小和组数的多少成正比

B.组距的大小和组数的多少成反比

C.组数愈多，组距愈大

D.组数愈少，组距愈小

某高校食堂的炊事员某乙在做菜时，误把仓库中的一瓶农药当做菜油用来炒菜；致使多人食后中毒，但因抢救及时，来造成任何伤亡。某乙的行为______。

A．构成过失投毒罪

B．属于意外事件

C．构成投毒罪

D．不构成犯罪

Healthy people with stressful jobs who work long hours but get little satisfaction from what they do have twice the risk of dying from heart disease as satisfied employees, according to a study. Job stress has been known to cause heart problems in people who already have cardiovascular disease (心血管病). Finnish scientists have now shown that even in healthy people the pressures of work can take their toll. High blood pressure, lack of exercise, smoking and being overweight contribute to heart disease—a leading killer in many industrialized countries.

But Mika Kivimaki, of the Finnish Institute of Occupational Health, and his colleagues, who studied the medical histories of 812 healthy Finnish men and women in a metal industry company over 25 years, said job stress also plays an important role.

Workers who had the highest job-related stress levels at the start of the study were more than twice as likely to die of heart disease, according to the study published in The British Medical Journal. Work stress involves too much work as well as a lack of satisfaction and feeling undervalued and unappreciated. Many people work long hours but if the effort is rewarding the stress is minimized.

The British Heart Foundation said the results support earlier research showing that people in jobs with low control, such as manual(体力的) workers, could be as great risk of heart disease than other employees. “ It is advisable for people to try to minimize levels of stress at work and for employees to allow people to have more control at work and to be rewarded for their successes,” the foundation said in a statement.

小题1:Healthy people may die from heart disease of ____________.

A．too much job stress

B．working too hard

C．feeling valued

D．being satisfied小题2:Which one of the following is NOT right according to this passage?

A．High blood pressure is likely to cause heart disease.

B．Being overweight may cause heart disease.

C．Job stress is most likely to cause heart disease.

D．Working long hours must cause heart disease.小题3:The underlined word “minimized” in the third paragraph means “_________”.

A．increased

B．reduced

C．raised

D．cured小题4:The author’s purpose in writing the passage is to _________.

A．advise people not to work long hours

B．suggest that everyone be satisfied with everything

C．ask us to learn to enjoy ourselves

D．tell us that job stress threatens our health nowadays.

耐火材料在高温下抵抗熔渣侵蚀作用而不破坏的能力称为（）。