问题
单项选择题
医院感染包括
A．入院前获得，入院后8小时出现临床症状
B．入院前获得，入院后4小时出现临床症状
C．入院时存在的感染
D．住院期间获得出现临床症状
E．入院时处于潜伏期的感染
答案
参考答案：D
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医院感染包括
A．入院前获得，入院后8小时出现临床症状
B．入院前获得，入院后4小时出现临床症状
C．入院时存在的感染
D．住院期间获得出现临床症状
E．入院时处于潜伏期的感染
参考答案：D
根据短文内容，用方框中所给词的适当形式填空
There are many different ways to spend our free time. Almost everyone has some kind of 3 . It may be something from colleting stamps to 4 model planes. Some hobbies are very expensive, but others don't cost anything at all. Some collections are worth 5 of money, others are valuable only to their owners. I know a man who has a coin collection worth several 6 dollars. A short time ago he bought a rare fifty-cent piece which cost him $ 250! He was very happy about this collection and thought the price was all right. On the other hand, my youngest brother collects match boxes. He has almost 600 kinds of them, but I wonder 7 they are worth any money. However, to my brother they are quite valuable. 8 makes him happier than to find a new match box for his collection. That's what a hobby means, I think. It is something we 9 to do in our free time just for the fun of it. The value in dollars is not 10 , but the pleasure it gives us is. |