问题
单项选择题
燃烧器控制箱上均配有出炉温度调节器，可自动或手动控制（）
A、燃气压力
B、燃油流量
C、出炉温度
D、油气比例
答案
参考答案：C
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燃烧器控制箱上均配有出炉温度调节器，可自动或手动控制（）
A、燃气压力
B、燃油流量
C、出炉温度
D、油气比例
参考答案：C
It is a happy thing for people to have a good body. Do you want to keep 1 ? Exercise often, please. If you usually go to work 2 your car, from now on(从现在起)you should go to work by bike or 3 . If you always get up 4 in the morning and only eat lunch and dinner every day , I think you should 5 the clock to wake(醒) you up early and do some morning exercises 6 , then have your breakfast. Fresh（新鲜的） air and a big good breakfast can make you feel happy. Do you like to eat 7 , for example, potato chips, hamburgers or hot dogs. Of course, they are 8 . But I think you should eat more fruit and 9 . Because they are 10 food. Too much junk food is not good for you .
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