实事求是的本质要求是______。A．没有调查就没有发言权 B．理论与实际相结合 C

印刷运行适性

科学研究成果表述的主要形式有（）

A．调查报告

B．研究方案

C．学术报告

D．实验报告

E．选题报告

委托收款业务的结算金额起点是（）

A、1000元

B、10000元

C、100000万元

D、无金额起点

Happiness can be described as a positive mood and a pleasant state of mind. According to recent investigations, sixty to seventy percent of Americans consider themselves to be moderately happy, one in twenty persons feel very happy. Psychologists have been studying the factors contributing to happiness. It is not predictable nor is a person in an apparently ideal situation necessarily happy. The ideal situation may have little to do with his actual feelings.

A good education and income are usually considered necessary for happiness. Though both may contribute, they are only chief factors if the person is seriously under - educated or actually suffering from lack of physical needs. The rich are not likely to be happier than the middle-in-come group or even those with very low incomes. People with college education are somewhat happier than those who didn’t graduated from high schools, and it is believed that this is mainly because they have more opportunity to control their lives. Yet people with a very high income and a college education may be less happy than those with the same income and no college education.

It should be noted that people quickly get used to what they have, they are happiest when they feel they are increasing their level, no matter where it stands at a given time. The best formula for happiness is to be able to develop the ability to tolerate frustration, to have a personal involvement and commitment, and to develop selfconfidence and to selfesteem.

The italicized word " they " in the second paragraph refers to（）。

A. recent investigations

B. psychologists

C. education and income

D. mood and state of mind

女，45岁，经检查诊断为急性胆囊炎，胆石症并发梗阻性化脓性胆管炎，患者血压偏 低，躁动不安，最好的处理是

A．短时期的术前准备行胆总管探查引流术

B．快速输液纠正水、电解质失衡，等待休克恢复

C．立即给镇静剂，输液，给升压药及大剂量抗生素保守治疗

D．即行胆囊切除术及胆总管切开探查术