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【单选题】
数据库逻辑结构设计的主要任务是A.
建立 E-R图
B.
把数据送入数据库
C.
建立数据流图和需求说明书
D.
将 E-R图转换为某个DBMS所支持的数据模型
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【单选题】—I really don’t know whether I can be admitted to dream university in a month. —________. Everything is possible.
A.
Take it easy
B.
Just ignore it
C.
Never give up
D.
Take your time
【简答题】单词拼写。 1. It was dark and he has completely lost his s______ of direction. 2. She gets c______ when her husband goes out drinking. 3. 'Every dog has his day.' is a s______, meaning that everyone gets h...
【简答题】Read the following passage that is about a girl called Sang Lan, and then write a letter to her. Sang Lan was a good gymnast (体操运动员)in China. She dreamed of going to the Olympics and being a world cha...
【简答题】请听下面一段对话，从题中所给的ABC三个选项中选出最佳选项。 1. What happened to the woman? [ ] A. She lost her job. B. The boss allowed her to go on a holiday. C. She was given a chance to study abroad. 2. How does the man fe...
【单选题】She completely lost her voice and had to give ______teaching.
A.
at
B.
in
C.
down
D.
up
【单选题】She completely lost her voice and had to give _____ teaching.
A.
to
B.
up
C.
on
D.
down
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