题目

如图是一个三输入端复合门电路，当C端输入“1”，且要求输出端Y输出的也为“1”，则A、B端输入的是（      ）                                                                                                                                                                                            　   A． 0  0          B． 0  1      C． 1  0       D． 1  1                                                                                                                                         答案：D

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