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【单选题】
假如采用关系数据库系统来实现应用，在数据库设计的( )阶段，需将E-R模型转换为关系数据模型。A.
概念设计
B.
逻辑设计
C.
物理设计
D.
运行阶段
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【简答题】Wherever she goes, Molly leaves her mark. Without saying a word, she speaks to people with her kind eyes. Even when she walks away, she leaves an impression. Molly's mark is a smile, stamped into the...
【单选题】Which of the following statements is TRUE about Ms Pethrick?
A.
Her eyes were badly poked.
B.
She had eight wounds altogether.
C.
One of her fingers also got hurt.
D.
One of the crocodile’s teeth was found in her leg.
【简答题】从方框里选择合适的词，根据句子的意思，用其适当形式填空。 possible refuse use worry her 小题1:David was badly hurt in the accident, so we were very _______ about him. 小题2:Lily’s family can’t afford her educ...
【单选题】Norm Pethrick, a 36-year-old man in Australia’s northern city Darwin, was praised on Thursday for jumping onto a crocodile’s back to save his wife Wendy at Litchfield National Park, a popular tourist ...
A.
Her eyes were badly poked.
B.
She had eight wounds altogether.
C.
One of her fingers also got hurt.
D.
One of the crocodile’s teeth was found in her leg.
【简答题】Wherever she goes, Molly leaves her mark. Without saying a word, she speaks to people with her kind eyes. Even when she walks away, she leaves an impression．Molly's mark is a smile, stamped into the g...
【单选题】陈先生在鼓励他孩子时说道：“不要害怕暂时的困难和挫折，不经历风雨怎么见彩虹？”他孩子不服气的说：“爸爸您说的不对。我经历了那么多风雨，怎么就没见到彩虹呢？” 陈先生孩子的回答最适宜用来反驳以下哪项？（ ）
A.
如果想见到彩虹，就必须经历风雨。
B.
只要经历了风雨，就可以见到彩虹。
C.
只有经历风雨，才能见到彩虹。
D.
即使经历了风雨，也可能见不到彩虹。
【简答题】Wherever she goes, Molly leaves her mark. Without saying a word, she speaks to people with her kind eyes. Even when she walks away, she leaves an impression．Molly’s mark is a smile, stamped into the g...
【单选题】Which of the following statements is TRUE about Ms Pethrick?
A.
Her eyes were badly poked.
B.
She had eight wounds altogether.
C.
One of her fingers also got hurt.
D.
One of the crocodile’s teeth was found in her leg.
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