食物的基本作用有哪些？_爱下问搜题

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问题问答题简答题

食物的基本作用有哪些？

答案

参考答案：滋养作用、预防作用、治疗作用和长寿作用。

完形填空

Mark was walking home from school one day when he saw a boy in front of him. He had dropped all of the books he was   16 , along with two sweaters, a basketball and a walkman (随身听).
Mark stopped and helped the boy pick the things up.   17  they were going the same way, he helped to carry some of his things. As they walked, Mark   18  that the boy’s name was Bill. He loved computer games, basketball, music and history,   19  he was having trouble with some of his   20  in school.
They arrived at Bill’s home first and Mark was   21  in for a Coke and to watch some television. The afternoon passed   22  with a few laughs and some small talk, then Mark went home.
They continued to   23  each other at school, had lunch together once or twice a week, and then they   24  finished middle school. Three weeks before they left school, Bill asked Mark if they could talk.
Bill reminded Mark of the day years ago when they had first   25 . “Did you ever wonder   26  I was carrying so many things home that day?” asked Bill.
“You see, I cleaned out my locker (锁柜) because I didn’t want to leave   27  for anyone else. I was going home to kill myself. But after we   28  some time together talking and laughing, I   29  that if I killed myself, I would have missed many good times. So you see, Mark, when you   30  those books that day, you actually saved my life.”

单项选择题

将风险分为财产风险、人身风险和责任风险是按风险( )进行的分类。

A．产生原因

B．分析依据

C．潜在损失形态

D．后果