实证研究方法的步骤有( )。A．确定和分析研究对象 B．设定假设条件 C．提出理论

不属神经系统的常见症状是

A．头痛
B．瘫痪
C．昏迷
D．痴呆
E．感觉障碍

Bluce Lee was born in San Francisco. He appeared in his first movie with his father when he was only 2 months old. Bruce and his parents returned to their home in Hong Kong in 1941. And Bruce Lee began his life-long interest in the Chinese Kung Fu. He studied with Yip Man, a Kung Fu master. Bruce was also often seen in many street fights. So his parents sent him back to the United States. He became a student at the University of Washington in Seattle. Later he opened a school to teach Kung Fu in Oakland, California.

In 1966, Bruce Lee acted in an American television series(系列) called The Green Hornet. The program was not a success, but many Hollywood movie actors began studying Kong Fu with him. He appeared in several other television programs.

Bruce Lee returned to Hong Kong in 1971 to act in a Chinese movie known in the United States as Fists of Fury. The movie was very popular in Asia. Another film, The Chinese Connection, followed it. In 1973. Bruce Lee made his the most famous movie Enter the Dragon. It became a major hit which made Bruce Lee a world famous movie star.

Bruce Lee died a few weeks before the movie was put on. He was 32 years old then. It's said that his early death ended what would have been a very successful movie career.

小题1: What was Bruce Lee interested in all his life?

A．Fighting

B．KungFu

C．Acting

D．Films小题2: Please put the following movies in order according to their time.

a. Enter the Dragon     b. Fists of Fury          c. The Chinese Connection

A．b, c, a

B．b, a, c

C．a, c, b

D．a, b, c小题3: According to the passage, which of the following is true?

A．Bruce Lee set up a Kung Fu school while he was studying in Seattle.

B．The movie Fists of Fury made Bruce Lee famous in the world.

C．Bruce Lee was only two months old when we first saw him in a movie.

D．Bruce Lee was sent back to America because of fighting often in the school.小题4:The phrase a major hit in the passage means                    .

A．致命一击

B．极为成功

C．猛烈撞击

D．命中要害

激光的特点以下哪一项有误（）。

A.方向性强

B.相干性好

C.穿透性强

D.单色性好

E.极化性高

两相短路时故障点的负序电压最高，电网中其它点的负序电压不可能达到故障点的负序电压值。

什么叫潮流？解释往复流、回转流。