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案例分析题A Pay Rise or Not"Unless I get a rise, I’ll have a talk with the boss, Henry Manley," George Strong said to himself. George liked his job and he liked the town he lived in, but his wife kept telling him that his pay was not enough to meet the needs of the family. That was why he was thinking of taking a job in Birmingham, a nearby city about 50 miles away. He had been offered a job in a factory there, and the pay was far better.George lived in Wyeford, a medium-sized town. He really liked the place and didn’t like the idea of moving somewhere else, but if he took the job in Birmingham, he would have to move his family there.Henry manley was the manager of a small company manufacturing electric motors. The company was in deep trouble because, among other reasons, the Japanese were selling such things at very low prices. As a result, Manley had to cut his own prices and profits as well. Otherwise he would not get any orders at all. Even then, orders were still not coming in fast enough, so that there was no money for raises(加工资)for his workers. Somehow, he had to struggle along and keep his best workers as well. He sighed. Just then the phone rang.His secretary told him that George Strong wanted to see him as soon as possible. Manley sighed again. He could guess what it was about. George Strong was a very young engineer. The company had no future unless it could attract and keep men like him. Manley rubbed his forehead(前额); his problems seemed endless. Henry Manley had no idea at all why George Strong wanted to see him.()

A. Right
B. Wrong
C. Not mentioned

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设Kn是n个顶点(n为正整数)的完全图,对Kn的每条边进行红、蓝两种颜色任意着色,都至少存在一个红色边三角形或蓝色边三角形,则最小的n是()。

案例分析题New Foods and the New WorldIn the last 500 years, nothing about people---not their clothes, ideas, or languages-has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree(可可树)by South American Indians. The Spanish introduced it to the rest of the world during the 1500’s. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today.The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the "Potato Famine(饥荒)"of 1845-1846, and thousands more were forced to leave their homeland and move to America.There are many other foods that have traveled from South America to the Old World. But some others went in the opposite direction. Brazil is now the world’s largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. But it is native to Ethiopia, a country in Africa. It was first made into a drink by Arabs during the 1400’s.According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. He tried one and experienced the "wide-awake" feeling that one-third of the world’s population now starts the day with. Which of the following statements is NOT true, according to the passage()

A. One third of the world’s population drinks coffee.
B. Coffee is native to Colombia
Coffee can keep one awake.
D. Coffee drinks were first made by Arabs.

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