搜题请搜索小程序“爱下问搜题”
问题 单项选择题

工作温度大于450℃的主蒸汽管道、高温再热蒸汽管道和高温导汽管的安装焊缝应采取氩弧焊打底。焊缝在热处理后或焊后（不需热处理的焊缝）应进行（）无损探伤。

A.100%

B.50%

C.20%

答案

参考答案：A

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.\

From the last sentence of the passage, we learn the man ______ before the doctor told him not to smoke more than one cigarette a day.

A. was a heavy smoker

B. didn’t smoke so much
C. didn’t smoke


D. began to learn to smoke
查看答案
单项选择题

依次填入下列各句横线处的词语，恰当的一组是（）。

①她就是小说中女主角的______。

②有一个贝壳迷花费了近十年的心血，______到几千种远东出产的贝壳。

③广告是一种宣传方式，商业广告的目的是______。

A．原形；收集；盈利

B．原形；搜集；营利

C．原型；搜集；营利

D．原型；收集；盈利
查看答案