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假设高度为h的二叉树上只有度为0和度为2的结点，问此类二叉树中的结点数可能达到的最大值和最小值各为多少 并说明是什么样的二叉树
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发展的自理要求
Now, you want to know about life in the past. Right I can tell you. When I was a boy, things were different. I had to get up at six every morning. That was not very bad in summer, but in winter it was cold. And we didn’t have any hot water in the house. We had to wash in cold water. We didn’t have a bathroom. My dad had some chickens. I had to feed them every morning and then I had to walk to school with my little sister. It was two miles to school and two miles back in the evening. But it always seemed longer in the morning when we were going to school. There was a bus, but we didn’t have the money. And we had to go to bed at seven o’clock every night. We couldn’t watch TV because there wasn’t any. On Sundays we had to go to the church three times-morning, afternoon and evening. And we couldn’t play outside on Sundays. But it wasn’t all bad. We had some good times. We could go to out and our parents didn’t have to worry about us. There weren’t so many cars on the roads then. So the streets were safe to play in. And there were not many robbers and thieves in those days. We had to work hard and we weren’t able buy all those things in the shops today. Life was hard. But it was simple and people were happier. I don’t think I’d like to be young today. What did the man do every Sunday()
Some people think they have an answer (36) the problem of automobile crowding and pollution in large cities. Their (37) is the bicycle, or bike. In a great (38) dries, hundreds of people ride bicycles to work every day. In New York city, some bike (39) have even formed a group (40) "Bike for a Better City". They claim (声称)that if (41) people rode bicycles to work, there (42) be (43) automobiles in the downtown section of the city and (44) less dirty air from car (45) .For several years this (46) has been trying to get the city government to (47) bicycle riders. For 48 ,they want the city to paint special lanes(车道) for bicycles only (49) some of the main streets, because when bicycle riders must use the (50) lanes as cars, there may be (51) ."Bike for a Better City" feels that if there were (52) lanes, (53) people would use bikes.But no bicycle lanes have been (54) yet. (55) thinks they are a good (56) . Taxi drivers (57) the idea--they say it will slow traffic. Some store owners on the main streets don’t like the idea-they say that if there (58) less traffic, they will have less (59) . And most people live (60) far from downtown to travel by bike. 40().
男性，58岁，1天前突然出现右下腹痛，呈阵发性，伴恶心、呕吐3次，不排气，查体，腹平软，右下腹轻压痛，无反跳痛，肠鸣音亢进。 该病人最可能的诊断是
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