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问题 选择题

黄瓜的维生素C含量比西瓜高1-5倍，已知高温时维生素C会被破坏，维生素C在酸性环境中稳定．下列你认为合理食用黄瓜的方法是（　　）

A．洗净生吃

B．用醋拌成凉菜食用

C．微火慢炖

D．用食盐和醋腌成酸黄瓜

答案

因在酸性条件下，维生素C较稳定，因此食用黄瓜时可向其中加入少量的醋；高温时黄瓜中维生素损失较大，所以黄瓜不宜炒吃，以凉拌为佳．

故选：B

单项选择题

(C)


Is there anything more important than health I don’t think so. "Health is the greatest wealth," wise people say. You can’t be good at your studies or work well when you are ill.
If you have a headache, toothache, backache, earache or bad pain in the stomach, if you complain of a bad cough, if you run a high temperature and have a bad cold, or if you suffer from high or low blood pressure, I think you should go to the doctor.
The doctor will examine your throat, feel your pulse, test your blood pressure, take your temperature, sound your heart and lungs, test your eyes, check your teeth or have your chest Xrayed. After that, he will advise some treatment, or some medicine. The only thing you have to do is to follow his advice.
Speaking about doctor’s advice, I can’t help telling you a funny story.
An old gentleman came to see the doctor. The man was very ill. He told the doctor about his weakness, memory loss and serious problems with his heart and lungs. The doctor examined him and said there was no medicine for his disease.
He told his patient to go to a quiet place for a month and have a good rest. He also advised him to eat a lot of meat, drink two glasses of red wine every day and take long walks. In other words, the doctor advised him to follow the rule: "Eat at pleasure, drink with measure and enjoy life as it is." The doctor also said that if the man wanted to be well again, he shouldn’t smoke more than one cigarette a day.
A month later the gentleman came into the doctor’s office. He looked much more cheerful and much happier. He thanked the doctor and said that he had never felt a healthier man.
"But you know, doctor," the man went on saying, "it’s not easy to begin smoking at my age.\

Which of the following is NOT TRUE

A. The doctor usually tests his / her blood pressure when a person is ill.
B. The man told the doctor he couldn’t remember things.
C. The man thanked the doctor.
D. The man didn’t follow the doctor’s advice.
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单项选择题

在火场上用“1301”灭火属于()灭火法。

（A）冷却

（B）隔离

（C）抑制

（D）窒息
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