直疝的特点是（）。 A.常见于中年以上妇女 B.疝囊颈狭小，容易嵌顿 C.疝内容物多

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

     What is a dream? For centuries, people have wondered about the strange places that they seem to visit

in their sleep. 1.____ However, they have been valued as necessary to a person's health and happiness.

     Historically people thought dreams contained messages from God. It was only in the twentieth century

that people started to study dreams scientifically believing that they tell about a person's character. 2.____

He believed that dreams allow a person to express fantasies or fears, which would be socially unacceptable

in real life.

     The second theory to become popular was Carl Jung's compensation theory. Jung, a former student of

Freud, said that the purpose of a dream is not to hide something, but rather to communicate it to the dreamer.

3.____Thus, people who think too highly of themselves may dream about falling; those who think too little

of themselves dream of being heroes.

     Using more recent research, William Domhoff from the University of California found that dreaming is a

mental skill that needs time to develop in humans. 4.____ Until they reach age five, they cannot express very

well what their dreams are about. Once people become adults, there is little or no change in their dreams. The

dreams of men and women differ. For instance.

     The characters that appear in the dreams of men are often other men, and often involve physical aggression. 

     The meaning of dreams continues to be difficult to understand. 5.____ If you dream that a loved one is

going to die, do not panic. The dream may have meaning, but it does not mean that your loved one is going to

die.

A. Dreams make up for what is lacking in waking life.

B. However, people should not take their dreams as reality.

C. They have been considered as meaningless nighttime journeys.

D. It gives scientists chances to better understand human mind.

E. Children do not dream as much as adults.

F. They think their mind is trying to tell them something.

G. First, there was Sigmund Freud's theory.

项目的可行性研究应具有( )的特点。

A．客观性、公正性、合理性
B．预见性、公正性、科学性
C．盈利性、可靠性、公正性
D．灵活性、主观性、科学性

接地线焊接完好后，应等焊接点冷却后，去除电焊产生的遗留杂物后进行掩埋。

包(package)是UML的______。

A) 结构事务
B) 分组事务
C) 行为事务
D) 注释事务

建设项目竣工验收的主要依据不包括包括（）

A.工程质量保修书

B.可行性研究报告

C.工程承包合同文件

D.施工图设计文件