问题
单项选择题
企业的实体分析是自顶向下规划的第二层求精，包括许多步骤。下列哪个步骤技术是对企业实体的概括
A．实体的确定
B．实体的抽象
C．实体联系图
D．实体映射
答案
参考答案：C
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企业的实体分析是自顶向下规划的第二层求精，包括许多步骤。下列哪个步骤技术是对企业实体的概括
A．实体的确定
B．实体的抽象
C．实体联系图
D．实体映射
参考答案：C
阅读短文，根据短文内容选择方框中所给词的适当形式填空．每个词限用一次。
 Gao Xiaosong, who is a famous musician, movie director and the writer of the famous song My Deskmate, has been sent to jail(监狱) and will小题1:there for six months for drunk driving.“I’ve 小题2: to say for myself and I’m willing to be punished(惩罚),” he said when he was standing in the 小题3:_. “What I want to say is that I feel 小题4: for what I’ve done. I thought alcohol(酒精)could bring me freedom but never realized drunk driving could 小题5:_away others’ freedom. And now I’ve 小题6:_ my own freedom because of drinking. I’ll obey the new road safety 小题7: and I want to be a life-long volunteer in persuading(劝说) others not to drive after drinking.” Anyone who drives after drinking doesn’t think much of human life. If Gao had cared, he would have left his car parked outside the restaurant and took a小题8: home, and he would have thought about a road killer he would become. It’s fair to say that his behavior can not be 小题9:in modern society. Gao may not have killed anyone, but by choosing to drive a car while under theinfluence of alcohol, he and the large number of others who do the same have 小题10: the dangerous decision that may possibly hurt other people. |