题目内容

关系模式的分解时唯一的。

A. 对
B. 错

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对1NF的关系模式进行分解,消除原关系模式中非主属性对码的部分函数依赖和传递函数依赖,可将其转化为若干个BCNF的关系模式。

A. 对
B. 错

“Of course I’m________; 2-10, there’s no defense for that, particularly when expectations were so high,” the coach said.

A. nervous
B. fearful
C. embarrassed
D. anxious

What’s done is done. Believe me! You’ll feel less pain in life if you learn to __________.

A. stand in line
B. let go
C. find my way
D. no doubt

If students are not satisfied with their grades, should the college allow them to _______ grades with their professors?

A. plead
B. assign
C. negotiate
D. accompany

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