问题
单项选择题
医疗用品污染后的危害程度可分为几类（）
A.1类
B.3类
C.5类
D.7类
E.9类
答案
参考答案：B
解析：医用物品对人体的危险性是指物品污染后造成危害的程度，根据其危害程度将其分为3类。
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医疗用品污染后的危害程度可分为几类（）
A.1类
B.3类
C.5类
D.7类
E.9类
参考答案：B
解析：医用物品对人体的危险性是指物品污染后造成危害的程度，根据其危害程度将其分为3类。
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| James's New Bicycle James shook his money box again. Nothing! He carefully 1 the coins that lay on the bed.＄24. 52 was all that he had. The bicycle he wanted was at least＄90! 2 on earth was he going to get the 3 of the money? He knew that his friends all had bicycles. It was 4 to hang around with people when you were the only one without wheels. He thought about what he could do. There was no 5 asking his parents, for he knew t hey had no money to 6 . There was only one way to get money, and that was to 7 it. He would have to find a job. 8 who would hire him and what could he do? He decided to ask Mr. Clay for advice, who usually had 9 on most things. "Well, you can start right here," said Mr. Clay. "My windows need cleaning and my car needs washing." That was the 10 of James' s odd-job (零工) business. For three months he worked every day after finishing his homework. He was amazed by the variety (多样化) of 11 that people found for him to do. He took dogs and babies for walks, cleared out cupboards, and mended books. He lost count of the 12 of cars he washed and windows he cleaned, but the 13 increased and he knew that he would soon have 14 for the bicycle he longed for. The day 15 came when James counted his money and found＄94. 32. He 16 no time and went down to the shop to pick up the bicycle he wanted. He rode 17 home, looking forward to showing his new bicycle to his friends. It had been hard 18 for the money, but James knew that he valued his bicycle far more 19 he had bought it with his own money. He had 20 what he thought was impossible, and that was worth even more than the bicycle. | ||||
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