问题 单项选择题

在选择空管二次雷达设置地点时,下述不正确的有:()

A、在机场内通常配置在机场内地势较高的高地或建筑物顶上,或在机场外较高的地点。

B、选择雷达站的地点时,应使雷达顶空盲区避开进离场航线和主要航路。

C、雷达站设置地点应根据其特性,能保证其对所辖区域各条航线和主要空中定位点均能进行有效的探测。D、设置雷达站的地点最好位于主要航路航线、或航路航线聚集区的中心正下方,以达到最佳覆盖效果。

答案

参考答案:D

阅读理解

Is it difficult for you to get up in the morning? Hiroyuki’s bed will solve your problem! Here is how it works.

  The bed is connected to an alarm clock(闹钟). First, the alarm clock rings. You have a few minutes to wake up. Next, a tape recorder in the bed plays soft music. The tape recorder in Hiroyuki’s bed plays a recording of his girlfriend. She whispered in a soft voice, “Wake up, darling, please.” After minutes later, Hiroyuki hears a recording of his boss. His boss shouts, “Wake up at once, or you’ll be late!”

If you don’t get up after the second recording, a mechanical(机械的) “foot” in the bed will kick you in the head. The bed waits a few more minutes. What! You’re still in bed! Slowly the top of the bed rises higher and higher. The foot of the bed goes lower and lower. Finally you slide(滑落) off the bed and onto the floor. You are out of bed awake!

  Hiroyuki’s bed is not in stores. There is only one bed — the bed Hiroyuki made for a contest(比赛). Maybe someday a company will make Hiroyuki’s bed and sell it in stores. Maybe people will buy millions of beds. Then Hiroyuki will be rich. If the bed makes Hiroyuki rich, he won’t need to work, and he won’t need to get up early!

小题1: The bed is useful to the people ________.

A. who can’t sleep well      

B. who can’t get up early     

C. who go to bed late

小题2: The bed is not connected to ________.

A. an alarm clock             B. a tape recorder            C. a TV

小题3:What will finally happen to Hiroyuki if he doesn’t get up?

A. He will slide onto the floor.

B. A tape recorder will play a recording of his boss.

C. A mechanical “foot” will kick him in the head.

小题4: Which is TRUE of the following sentences?

A. Hiroyuki’s company has made many such beds.

B. Hiroyuki’s bed is the only one made for a contest.

C. Hiroyuki has made a lot of money.

小题5:The word “whisper” in the second paragraph means “________”.

A. speak loudly         

B. speak angrily         

C. speak quietly

单项选择题