下列各项中,()不是圆弧齿轮传动的缺点。A、弯曲强度一般较低 B、中心距误差对承载力影

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问题:

下列各项中,()不是圆弧齿轮传动的缺点。

A、弯曲强度一般较低

B、中心距误差对承载力影响很大

C、需用两把刀具分别加工

D、没有根切问题

考点:轧钢工考试高级螺旋钢管制造工高级螺旋钢管制造工题库
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Frank Woolworth was born in Rodman, New York., in 1852. His family were very poor farmers, and there was never enough to eat. Frank decided he did not want to be farmer. He took a short business course, and went to work as a salesman in a large city.

Woolworth realized he had a natural skill for showing goods to attract people’s interest, but he soon learned something more important. One day his boss told him to sell some odds and ends (小商品) for as much as he could get. Frank put all these things on one table with a sign which said FIVE CENTS EACH. People fought and pushed to buy the things and the table was soon cleared.

Soon afterwards, Woolworth opened his own store, selling goods at five and ten cents. But he had another lesson to learn before he became successful. That is, if you want to make money by selling low-price goods, you have to buy them in large quantities directly form the factories. Once, for example, Woolworth went to Germany and placed an order for knives. The order was so large that the factory had to keep running 24 hours a day for a whole year. In this way, the price of the knives was cut down by half.

By 1919, Woolworth had over 1000 stores in the US and Canada, and opened his first store in London. He made many millions and his name became famous throughout the world. He always run his business according to strict rules, of which the most important was: “ THE CUSTOMER IS ALWAYS RIGHT.” (词数268)

小题1:Frank took a short business course in order to ____________.

A.earn more money for his family

B.learn something from a salesman

C.get away from the farm

D.get enough to eat.小题2: Frank sold the odds and ends quickly because _____________.

A.he knew how to get people to buy his goods.

B.he cut down the price by half

C.he had put the goods on a table in a very nice way.

D.the sign he put on the table was well designed.小题3:The price of the knives was cut down by half because ______________.

A.the factory workers worked 24 hours a day.

B.knives were ordered in large quantities directly from the factory.

C.the knives were made in Germany, where labor (劳动力) was cheap.

D.the knives were produced in one factory.小题4: _____________make Woolworth a world-famous man.

A.His business skills and his wealth.

B.The low price of the goods he sold.

C.His trip to Germany and his huge order of knives.

D.His natural skill for showing things.小题5:The belief that : “ The customer is always right” suggests that _______________.

A.whenever there is a quarrel between the customer and shop assistant, the customers are always right.

B.If you want to succeed, the rule is the only way.

C.stores must always follow the customer’s orders if they want to make more money.

D.stores should do their best to meet the customer’s needs if they want to be successful.

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尺寸标注必须()、()、()。

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防尘防毒的管理措施不包括对从事有害有毒作业人员的查体及健康维护。

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A.导致机体缺氧

B.使腺体过度分泌

C.与细胞色素氧化酶结合

D.与ChE结合形成磷酰化胆碱酯酶

E.导致中毒性肝炎

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