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性状特征为：呈纽扣状扁圆形，通常一面隆起，另一面微凹；.表面密被灰棕色或灰绿色绢状茸毛；.底面中心有突起的圆点状种脐；.质坚硬，平行剖面可见淡黄白色胚乳，角质状，子叶心形；.无臭，味极苦。

该药材的用量为（）。

A.0.01～0.05g

B.0.6～0.9g

C.0.9～1.2g

D.0.3～0.6g

E.0.05～0.1g

F.0.1～0.3g

答案

参考答案：D

单项选择题

A


A jobless man wanted very much to have the position of "office boy" at Microsoft. The HR manager interviewed him and then watched him cleaning the floor as a test. "You have passed the test," he said. "Give me your e-mail address and I’ll send you the form to fill in and the date when you may start. " The man replied, "But I don’t have a computer, neither an e-mail. " "I’m sorry," said the HR manager. "If you don’t have an e-mail, that means you are not living. And anyone who isn’t living cannot have the job. "
The man left with no hope at all. He didn’t know what to do with only $ 10 in his pocket. He thought and thought. Then he went to the supermarket and bought 10 kilos of tomatoes. He sold the tomatoes from door to door. In less than two hours, he had 20 dollars. He repeated the operation three times, and started to go early every day, and returned home late. Shortly, he bought a cart, then a truck, then he had his own fleet of delivery vehicles(运货车队). Five years later, the man was one of the biggest food retailers (零售商)in the US.
One day, one of his friends asked him for his e-mail. He said, "I haven’t got one. " His friend couldn’t believe his ears. "Can you imagine what you could have been if you had an e-mail" The man thought for a while and replied, "Yes, I’d be an office boy at Microsoft!\

What does the story want to tell us ( )

A．Computers are very important in our daily life.

B．Everyone can make a lot of money with only $ 10.

C．The HR manager didn’t find the ability of the man.

D．Nothing in the world is impossible if we work har
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填空题

镀锡原板用钢大多采用低碳钢，其含碳量一般为（）。
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