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问题 单项选择题 A1/A2型题

关于磷酸可待因作用叙述正确的是（）

A.本品为弱的μ受体激动剂

B.本品为强的μ受体激动剂

C.镇痛作用比吗啡强

D.临床上用于重度止痛

E.适用于各种剧烈干咳的治疗，没有成瘾性

答案

参考答案：A

解析：本品为弱的μ受体激动剂，镇痛作用比吗啡弱。临床上用于中等疼痛的止痛，可待因多用作中枢性镇咳药，适用于各种剧烈干咳的治疗，有轻度成瘾性。

单项选择题

How should one invest a sum of money in these days of inflation (通货膨胀) Left in a bank it will hardly keep its value, however high the interest rate is. Only a brave man, or a very rich one, dares to buy and sell on the Stock Market. Today it seems that one of the best ways to protect your savings, and even increase your wealth is to buy beautiful objects from the past. Here I am going to offer some advice on collecting antique clocks, which I personally consider are among the most interesting of antiques.
I sometimes wonder what a being from another planet might report back about our way of life. "The planet Earth is ruled by a mysterious creature that sits or stands in a room and makes a strange ticking sound. It has a face with twelve black marks and two hands. Men can do nothing without its permission, and it fastens its young round people’s wrists so that everywhere men go they are still under its control. This creature is the real master of Earth and men are its slaves. "
Whether or not we are slaves of time today depends on our culture and personality, but it is believed that many years ago kings kept special slaves to tell the time. Certain men were very clever at measuring the time of day according to the beating of their own hearts. They were made to stand in a fixed place and every hour or so would shout the time. So it seems that the first clocks were human beings.
However, men quickly found more convenient and reliable ways of telling .the time. They learned to use the shadows cast by the sun. They marked the hours on candles, used sand in hour-glasses, and invented water-clocks. Indeed, any serious student of antiques should spend as much time as possible visiting palaces, stately homes and museums to see some of the finest examples of clocks from the past.
Antique clocks could be very expensive, but one of the joys of collecting clocks is that it is still possible to find quite cheap ones for your own home. After all, if you are going to be ruled by the time, why not invest in air antique clock and perhaps make a future profit

According to the passage, collecting antique clocks ______.

A．can hardly keep the value of your savings

B．will cost much of your money

C．may increase your wealth

D．needs your bravery
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单项选择题

巴金的表现社会革命、探索青年革命道路题材的作品是（）

A.《激流三部曲》

B.《憩园》

C.《家》

D.《爱情的三部曲》
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