问题
填空题
以实际孔径天线进行工作的侧视雷达，称真实孔径侧视雷达。要提高这种雷达的方位分辨力，只有加大（）、缩短（）和（）。
答案
参考答案：加大天线孔径；探测距离；工作波长
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以实际孔径天线进行工作的侧视雷达，称真实孔径侧视雷达。要提高这种雷达的方位分辨力，只有加大（）、缩短（）和（）。
参考答案：加大天线孔径；探测距离；工作波长
| 完形填空。 | |||
| Tom lives in New York. His father has a shop and his mother is a doctor. He is seven years old now, and begins __1__ to school this autumn. It's far__2__ from their shop and his father __3__ him to school every day. So he __4__ never late for school and his teachers all like him. It's Monday today, Miss Hunt is teaching them to __5__ from one to ten. Sam is studying hard. Soon he can count __6__ . Miss Hunt is happy and __7__ . "How many people are there in your __8__ , Sam?" Sam stands up and says, "Two, Miss Hunt." " __9__ ''are they?" "My father and my mother." "Oh?" Miss Hunt is surprised. She says, " There are three people in your family." "But now I am not __10__ . I am at school, you know!" | |||
| ( ) 1. A. go ( ) 2. A. away ( ) 3. A. walks ( ) 4. A. does ( ) 5. A. count ( ) 6. A. it ( ) 7. A. answers ( ) 8. A. house ( ) 9. A. Whose ( ) 10. A. at school | B. goes B. from B. brings B. is B. want B. them B. says B. home B. What B. in class | C. to go C. to C. carries C. doesn't C. know C. they C. tells C. family C. Which C. at home | D. go to D. around D. drives D. isn't D. ask D. its D. asks D. room D. Who D. after school |