试题与答案

以下情况产生的误差属于系统误差的是()。 A.指示剂变色点与化学计量点不一致 B.滴

题型:单项选择题

题目:

以下情况产生的误差属于系统误差的是()。

A.指示剂变色点与化学计量点不一致

B.滴定管读数最后一位估测不准

C.称样时砝码数值记错

D.称量过程中天平零点稍有变动

答案:

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题型:阅读理解

阅读理解。

     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 X-rayed. 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 cheerful and happy. He thanked the doctor and said that he had never felt a healthier man.

"But you know, doctor," he said, "it's not easy to begin smoking at my age."

1. The writer thinks that _____. [ ]

A. health is more important than wealth

B. work is as important as studies

C. medicine is more important than pleasure

D. nothing is more important than money

2. The doctor usually tells his patient what to do _____. [ ]

A. without examining the patient

B. after he has examined the patient

C. if the patient doesn't take medicine

D. unless the patient feels pain

3. The underlined part means "_____". [ ]

A. he was feeling better than ever

B. he wasn't a healthy man

C. he was feeling worse than before

D. he will be well again

4. 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

5. 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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