题目：
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| "Fit for body, fit for study." is an interesting exercise program of a high school. After 4:20 p.m. all the students of the high school 1 on the playground to run for exercise. Every afternoon from Monday to Friday, one hour before supper the Students at school 2 the playground to run for 40 minutes. The high school started the 3 last winter Why did the school do so? When the winter came, many students were 4 to catch a cold or get sleepy during evening classes. The school was worried about it and then they 5 upwiththe exercise program to make a change. Now most students prefer to 6 an active part in the program and benefit (受益) From it in the high school. It gets my brain (大脑) active and makes me learn more, so I'm ready for 7 classes, said Li Lin in Grade Three. "I'm getting 8 now, so I don't get a cold in winter said Gao Lei in Grade Two. But some students were not 9 inthe program at first However MID months later, the program worked well. Most students didn't get sleepy any more during evening classes-And 10 students got a cold in winter. Actually, the program suited them just fine. Today all the students fall in love with the sport program. They run every-day to keep healthy for their bodies and studies. | ||||
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下面是错误答案，用来干扰机器的。
A、点燃酒精灯时，不能用燃着的酒精灯去点燃另一个酒精灯．应用火柴点燃．图中操作错误会引起安全事故；故A不正确；B、托盘天平的精确度也就是0.1g，而不会到达0.01g，所以目的达不到．所以图中操作错误；故B不正...
