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【判断题】
关系模型中实体与实体间的联系是通过二维表结构来表示的。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】__________a child, sculptor Anne Whitney showed an eager intellect and artistic talent that her parents recognized and encouraged.
A.
Has been
B.
It was while
C.
She was
D.
As
【简答题】阅读理解。 Anne Whitney, a sophomore at Colorado State University, first had a problem taking tests when she began college. 'I was always well prepared for my tests. Sometimes I studied for weeks before a ...
【简答题】N6培养基是1974年由我国的（ ）等为水稻等禾谷类作物花药培养而设计的。
【简答题】Anne Whitney, a sophomore(二年级学生) at Colorado State University, first had a problem taking tests when she began college. 'I was always well prepared for my tests. Sometimes I studied for weeks before a...
【单选题】请阅读短文，完成第题。 Anne Whitney， a sophomore at Colorado State University， first had a problem taking tests when she began college. 'I was always well prepared for my tests. Sometimes I studied for weeks bef...
A.
to be like a blanket
B.
to be sure of an answer
C.
to be unable to think clearly
D.
to show knowledge to the teacher
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