问题
填空题
我国自行研制的“神舟五号”载人飞船于二00三年十月十五日成功发射，并环绕地球飞行约590520千米，请将这一数字用科学记数法表示为______千米（要求保留一位有效数字）．
答案
590 520≈6×105km．（保留一位有效数字）
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我国自行研制的“神舟五号”载人飞船于二00三年十月十五日成功发射，并环绕地球飞行约590520千米，请将这一数字用科学记数法表示为______千米（要求保留一位有效数字）．
590 520≈6×105km．（保留一位有效数字）
| 阅读理解。 | ||||||
Here are some short messages. Please read them first carefully and find the best answers to the questions:
| ||||||
| 1. Joy got a lot of _______ yesterday. | ||||||
| A. letters B. books C. information D. e-mails | ||||||
| 2. What is "The Fugitive"? | ||||||
| A. A book. B. A film. C. A song. D. A game. | ||||||
| 3. What did Mr. Brown do for Joy? | ||||||
| A. He examined her car. B. He wanted to buy her car. C. He prepared dinner for her. D. He found a new brand of dog food. | ||||||
| 4. What are Loy and Luckey? | ||||||
| A. A man and a dog. B. A man and a woman. C. Two kinds of food. D. Wu's and Wang's dogs. | ||||||
| 5. Who of the following persons is probably a member in Joy's family? | ||||||
| A. Helen. B. Wu. C. Sue. D. Carl. |