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问题 填空题

根据铸型旋转轴空间位置的不同，离心铸造机可分为（）和（）两大类。

答案

参考答案：立式；卧式

单项选择题

机电产品国际招标的投标价格调整包括供货范围调整、商务偏差调整、技术偏差调整等。一般按照约定的允许偏差项数和范围分别计算调整额，每项商务偏差调整最多不超过投标价格的( )。

A．1%

B．2%

C．3%

D．4%
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单项选择题

A


Once there was a piano player in a bar (酒吧). People came just to hear him play. But one night, a lady asked him to sing a song.
"I don’t sing, "said the man.
But the lady told the waiter, "I’m tired of listening to the piano. I want the player to sing!"
The waiter shouted across the room, "Hey, friend! If you want to get paid, sing a song!"
So he did. He had never sung in public before. Now he was singing for the very first time! Nobody had ever heard the song Mona losa sung so beautifully!
He had talent(天赋) he was sitting on! He may have lived the rest of his life as a no-name piano player in a no-name bar. But once he found, by accident, that he could sing well, he went on working hard and became one of the best-known singers in the US. His name was Nat King Cole.
You, too, have skills and abilities. You may not fell that your talent is great, but it may be better than you think. With hard work, most skills can be improved. Besides, you may have no success at all if you just sit on your talent.

From the story we know if you have some talent, you should ______.

A．hide it and wait

B．ask others for help

C．pay no attention to it

D．work hard to improve yourself
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