试题与答案

My brother is very tall. The little bed wo

题型:单项选择题

题目:

My brother is very tall. The little bed won't ______ for him.

A.prepare
B.match
C.fit
D.do

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A解析: 根据完全函数依赖的定义可知,在R(U)中,如果X→Y,并且对于X的任何一个真子集X',X'→Y不成立,则称Y对X完全函数依赖。

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