下列叙述中正确的是( )。A．实体集之间一对一的联系实际上就是一一对应的关系 B．关 发布时间：2018-01-05 19:01 │ 来源：www.tikuol.com 题型：单项选择题 问题： 下列叙述中正确的是( )。A．实体集之间一对一的联系实际上就是一一对应的关系B．关系模型只能处理实体集之间一对一的联系C．关系模型属于格式化模型D．以上三种说法都不对
题型：单项选择题 完形填空。 Alfred Nobel became a millionaire and changed the ways of mining,construction, and warfare as the inventor of dynamite (炸药). On April 12, 1888, Alfred's brother Ludwig died of heart attack. Amajor French newspaper 1 his brother for him and carried an article 2 the death of Alfred Nobel. "The merchant of death is dead."the article read." Dr. Alfred Nobel, who became 3 by finding waysto kill more people faster than ever before,died yesterday. "Nobel was 4 to find out not that he had died, but that, when his time was up, he would be thought of only as one who profited from 5 and destruction." To make sure that he was 6 with love and respect. Nobel arranged in his 7 to give the largest part of his money to 8 the Nobel prizes,which would be awarded to people who made great 9 to the causes of peace, literature, and the sciences. So 10 , Nobel had to die before he realized what hislife was really about. ( )1. A. found ( )2. A. introducing( )3. A. famous ( )4. A. upset ( )5. A. death ( )6. A. repaid ( )7. A. book ( )8. A. establish ( )9. A. additions ( )10. A. generally B. misunderstood B. announcing B. sick B. anxious B. disease B. described B. article B. form B. sacrifices B. basically C. mistook C. implying C. rich C. excited C. trouble C. supported C. will C. develop C. changes C. usually D. judged D. advertising D. popular D. pleased D. attack D. remembered D. contract D. promote D. contributions D. certainly 查看答案