捞油目前使用的主要设备是（）和固定轨道式两种。A、车载式 B、固定式 C、活动轨道式

如果点A（x，4-2x）在第一，三象限夹角平分线上，则x=______，如果点A在第二，四象限夹角平分线上，则x=______．

      Music has often been used in movies to create mood and add dimension to the images which the audience sees on the screen. One man who is famous for his ability to write powerful and highly effective music for movies is John Williams. Mr. Williams has been writing music for movies since 1960, but he is perhaps best known for his award-winning scores for movies such as Jaws, Star Wars, and Schindler's List. Before he began writing music for the movies, Mr. Williams dreamed of being a concert pianist. He studied at both the University of California, Los Angeles and Juilliard School. During the 1950s, Mr. Williams was into jazz and he worked in New York City with many jazz artists. Later, he moved back to Los Angeles where he continued to play the piano for jazz musicians. He also got a job writing music for television shows. It was this television job that led him into movies.

Throughout the 1960s, Mr. Williams wrote the music that can be heard in more than 20 movies. Most of these movies were light comedies. Then, in 1975, the director of the movie Jaws, Steven Spielberg, hired Mr. Williams. The director thought that Mr. William's music added so much to the scary （引起恐慌的）scenes of the movie that he insisted on working with Mr. Williams in all of his future movies. Other directors and Hollywood film studios also demanded to work with Mr. Williams, and his career as a composer of movie soundtracks took off. Many of these movies have soundtracks that are still available in music stores today. They include The Deer Hunter, Raiders of the Lost Ark, ET, and Jurassic Park.

In 1980, Mr. Williams had another chance to expand his musical experience. He was chosen to be the new conductor for the Boston Pops Orchestra when Arthur Fiedler retired. Mr. Williams gladly accepted the position because it only required that he conduct the orchestra during the summer. This left him free to continue writing music for the movies during the rest of the year. Mr. Williams conducted the Boston Pops for more than 12 years before he decided to retire and write music full-time. Along with the many movie music scores he has written, Mr. Williams has also written two symphonies, a flute concerto, and a violin concerto. Up to now, Mr. Williams has written music for more than 60 movies. It is no wonder that he is today's most famous Hollywood composer.

69. What is John Williams most famous for?

A. Conducting.                 B. Making movies.

C. Playing jazz.                 D. Writing music for movies.

70. What happened to Mr. Williams in 1975?

A. He began writing music for movies.      B. He moved to Hollywood.

C. He worked with Steven Spielberg.        D. He worked for the Boston Pops.

71. Which of the following things has Mr. Williams not done?

A. Conducted an orchestra.              B. Directed a movie.

C. Played jazz piano.                   D. Writing classical music.

在期货交易所进行期货交易的，可以是期货交易所会员，也可以是非会员。（）

如果期初余额对本期会计报表整体可能存在非常重大的影响，但注册会计师无法对其获取充分、适当的审计证据，注册会计师应当对本期会计报表发表( )。

A．无保留意见

B．保留意见

C．无法表示意见

D．否定意见

男性，11岁。因左下肢外伤后疼痛10天，加重伴活动受限、发热3天入院。缘于10天前跑步时撞伤左大腿，明显疼痛，活动受限，卧床休息后稍缓解。3天前疼痛加重，伴发热，体温高达40℃，在当地医院静滴青霉素后无好转，行X线片检查未发现异常。查体：T38．8℃，P110次/分。左大腿周径35cm，右侧32cm，双小腿周径25cm。动脉搏动良好，感觉正常。

目前最关键的治疗措施应采取（）

A.重复穿刺抽脓

B.及时调整抗生素及用药剂量

C.局部固定防止病理骨折

D.局部骨皮质开窗引流，并持续灌洗

E.防治体液代谢失调

F.物理降温