单项选择题
A.2B.3C.4
A.32B.64C.23
A.ALTBOUT=1AEQBOUT=0AGTBOUT=0B.ALTBOUT=1AEQBOUT=1AGTBOUT=0C.ALTBOUT=0AEQBOUT=1AGTBOUT=1D.ALTBOUT=0AEQBOUT=0AGTBOUT=1