已知函数f（x）=-x4+2x2． （I）求f（x）的单调区间； （II）设点P

The Legend of Bruce Lee was a very popular TV play. The surprising life of Brue Lee came to the small screen（屏幕）in the play. The play followed the 32 vears of Bruce Lee’s life, from his hard young age to his experience in the U.S.A. and his movie-making life.

Lee was born in San Francisco, California, and grew up in Hong Kong. He loved his motherland（祖国）China and Chinese kung fu. His Hong Kong and Hollywood films were quite different from the traditional kung fu films. He started a new kung fu film age. Because of his films, the west began to show great interest in Chinese culture. He affected（影响）Chinese kung fu and Chinese kung fu films in Hong Kong and the rest of the world. Lee showed Chinese national pride（自豪 ）in his movies.

小题1:How old was Bruce Lee when he died?

A．31

B．32

C．30

D．33小题2:Where was Bruce Lee born?

A．In San Francisco.

B．In London.

C．In Hong Kong.

D．In Guangzhou.小题3:According to this article, we know young Bruce _______.

A．was a national hero

B．wanted to go to Hollywood

C．had many troubles

D．was interested in making movies小题4:Which of the following is TRUE according to this article?

A．The play showed Bruce Lee’s surprising life.

B．Bruce Lee’s motherland was the United States.

C．Bruce Lee showed people Chinese people’s hard work in his movies.

D．Bruce Lee’s kung fu films affected all the films around the “world.小题5:What’s this article about?

A．Bruce Lee’s kung fu.

B．Bruce Lee’s films.

C．Bruce Lee and his wife.

D．Bruce Lee and The Legend of Bruce Lee.

马克思指出：“资产阶级不仅锻造了置自身于死地的武器，它还产生了将要运用这一武器的人——现代的工人，即无产者。”这里的“武器”是指[ ]

A．暴力革命

B．代议制民主

C．先进的生产力

D．科学社会主义

关于特发性血小板减少性紫癜（ITP）的描述错误的是（）。

A.急性型ITP与感染因素有关

B.血小板寿命缩短

C.骨髓巨核细胞总数减少

D.临床上是较常见的一种出血性疾病

E.急性型ITP多见于儿童

电动机长期过负荷，通风不良，电源电压过高或过低会导致电动机（）。

瓜柱