简述机械通气的并发症。
题型：问答题 简答题
问题：
简述机械通气的并发症。
题型：问答题 简答题
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阅读下面短文，并借助上下文和插图补充所缺信息。每个空只能填写一个形式正确、意义相符的单词。
Tom was a poor boy. He made a living by cleaning leather (皮革) 1 for others in the street. Tom was
also a 2 boy. One day, a rich man 3 Miser appeared in front of Tom.
He watched his 4 shoes for a while, and then, looked at Tom. Tom knew this kind of people well. They
loved money but hated to spend it.
Tom said, "Let me 5 your shoes, sir. Only two pence (便士), sir"
Miser shook his head and walked away.
Tom thought for a second and then called out, "I'd like to clean it for nothing." This time Miser agreed. And
soon one of his shoes was shining brightly.
When the rich man put his other shoe on the stool (凳子), Tom said he wouldn't clean it for him 6 he was
paid two pence for his work. Miser was very 7 . He refused to pay anything and went away.
But to his 8 , the well cleaned shoe was so bright that it made the other one look even dirtier. Miser looked
round. People in the street were 9 at him.
Finally the rich man 10 and gave Tom two pence. In a very short time his two shoes shone brightly.
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