联机分析处理OLAP专门用于（ ）。
A．数据处理
B．支持复杂的分析操作
C．自动控制
D．小数据景的简单查询处理
参考答案：B
解析：联机分析处理OLAP主要支持复杂的分析操作，侧重于对决策人 员和高层管理人员的决策支持，可应分析人员的要求快速、灵活地进行大数据量的复杂查询处理，并且以一种直观易懂的形式将查询结果提供给决策人员，能准确掌握企业的经营状况，了解市场需求，制定正确方案，增加效益。
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| John,11 years old, was in bed in hospital. Several days before, while he was 1 in a baseball game, he fell and hit his head. The doctors believed that he might 2 get well. "He seems to have given up hope. So medicines alone won't 3 . Perhaps he needs something else," said a doctor. "When I visit him, all he ever says is that he would like to meet Babe Ruth." To meet Babe Ruth, of course, was not 4 . In America, Babe Ruth was as 5 a man as the President himself, and he was the most famous baseball player. The next day John's father managed to tell Babe Ruth about the story of his son on the phone. Twenty-four hours later, as the boy 6 in his hospital room, in walked 7 . Young John could hardly believe his own eyes! The great baseball player sat down at Jobn's bedside, sang, "Now, listen, kid, you've got to get well. I've brought you a new American League baseball, 8 you must start throwing it." For John this was the beginning of a new life. 9 his doctors' surprise, the boy walked out of the hospital on his own a few weeks later. How was able to live a healthy life-all because of the 10 of Babe Ruth. | ||||
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