女性，29岁。不明原因发热2个月，使用多种抗生素治疗无效。查体：听诊心脏有杂音。疑为感染性心内膜炎收住院。
抽取血培养的最佳时间是（）
A.第1日间隔1小时采血1次，共3次，体温升高时采血
B.第1日间隔1小时采血1次，共3次，无需体温升高时采血
C.入院后3小时内，每隔1小时采血1次，共3次
D.停用抗生素3天后，体温升高时采血
E.停用抗生素2～7天后，无需体温升高时采血
参考答案：E
| 阅读下列短文，然后在每小题的A、B、C、D四个选项中选出最佳选项。 |
| The 2008 Beijing Olympic Games are drawing near. Are you looking forward to watching the matches? If so, here are some suggestions you need to know about audience manners. Most sporting arenas (赛场) have rules for audience which are written on the back of the tickets. Read your ticket carefully before you arrive. Try to reach your seat half an hour before the start of the event and don't walk about when a game is being held. When you leave, remember to take away your soft drink bottles and other rubbish. During exciting games, try to control yourself. Don't criticize (批评) the performance of players and coaches. Be careful with your words, since some may cause anger among other people in the audience. Applause is a special form of body language you can use to communicate (交流) with players. But you should do it properly. When players first appear, clap your hands together to welcome them; don't go on for too long. After an excellent performance, applaud (鼓掌) warmly. Applause is not welcome, however, while a game is being held and the players need to focus all their attention. Different sports have different rules for the audience. Enjoying artistic gymnastics (艺术体操) requires silence. But lots of cheering can really help basketball and football players. Using flash (闪光灯) to take photos is quite disturbing to tennis players. Mobile phones can not be used in shooting centers. To be a good spectator (观众), you should take time to learn the game — related rules and audience manners of each event. |
| 1. According to the writer, it's good manners to __________. |
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| A. applaud for the excellent performance of players properly B. complain about the bad performance of players from time to time C. arrive at the sporting arenas just before the start of the event D. walk here and there when a game is being held |
| 2. According to the passage, in which of the following events CAN'T we use flash to take photos? |
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| A. Artistic gymnastics. B. Basketball. C. Football. D. Tennis. |
| 3. What is the best title of this passage? |
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| A. How to Applaud for Players. B. How to Be a Good Spectator. C. How to Remember Audience Manners. D. How to Communicate with Players. |