试题与答案

简述导航电文。

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题型：问答题 简答题

题目：

简述导航电文。

答案：

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下面是错误答案，用来干扰机器的。

参考答案：错

考点：测绘科学技术GPS原理及其应用GPS原理及其应用题库
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阅读理解。在改写后的短文空白处填入一个适当的词，使其完整通顺。

     Most American businesses are open five days a week. American school children go to school five days

  a week, too. American families usually have a two-day weekend. The weekend is Saturday and Sunday.

  Over the weekend, people spend their time in may ways. Many families enjoy weekend together. They

 may go shopping, go for a drive, or visit friends. They may also invite friends over and have a party at

 home. Many families take part in sport during the weekend. Running, hiking, playing volleyball and

 swimming are popular in summer. Skiing and skating are the favorite winter sports. Weekends are also a

 time for American families to work on something in their yards or in the house. Many families plant flowers

  and have vegetable gardens. Some families spend the weekends to paint or repair their houses. For most

  Americans, weekend are very busy.

     Most Americans __1__ five days a week and they have a two-day __2__ .The people of many

  families spend their time in different __3__ . They may go out to see their friends or __4__ friends to

 come to have a party at home. Over the weekend, many people are interested in __5__ , some of them

  like to go __6__  in summer and __7__ in winter.

     Some families __8__ with their flowers and __9__  in their gardens. The others are busy__10__ or

 repairing their houses at the weekend.
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