问题
解答题
1，1，2，3，5，8，13，…这一列数的规律是：第1、第2个数是1，从第3个数起，该数是其前2个数之和.试编写一个程序，计算这列数中前20个数之和.
答案
i=3；
A=1；
B=1；
sum=A+B；
while i＜=20
i=i+1；
C=A+B；
sum=sum+C；
A=B；
B=C；
end
print（% io（2），sum）；
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1，1，2，3，5，8，13，…这一列数的规律是：第1、第2个数是1，从第3个数起，该数是其前2个数之和.试编写一个程序，计算这列数中前20个数之和.
i=3；
A=1；
B=1；
sum=A+B；
while i＜=20
i=i+1；
C=A+B；
sum=sum+C；
A=B；
B=C；
end
print（% io（2），sum）；
It was very cold outside my car. I did not want to get out of it__31__we passed by a cafe. Suddenly I noticed a short old man, __32__ with some bits of cloth, shaking(摆动)with the cold. He was waiting for anyone who would__33__ him a coin or a cup of hot coffee. I asked my __34_ to go over and hand this old man something. He __35__ into my husband’s face, smiled and said, “__36__ . ” I felt so happy and I wished the old man could live __37__ the cold night. I was sure to meet him again and find out how he was the next__38__, as I have to pass this way every day. I did so the next evening, and he remembered the__39__and came up to my window and __40__ at me. This time I offered(提供) him a __41__of food. He reached out for the bag and I gave him my hand. He __42__ the food, smiled and said, “May God bless you.” I looked at the old man and he __43__ me think of my father. I do hope all of us will remember that maybe one day, it could happen to one of us, __44__ please do not pass by a __45__ person without offering at least a word of love and a kind smile or an act of kindness of any kind.
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