不定项选择由与非门构成的RS触发器如图所示,=11,=0,则=0
单项选择题If the customer says “I really can’t make up my mind”,what would the better answer of the salesperson ? A、“ You need not make up your mind” B、 It is easy to make up your mind” C、“It is cheap” “It is cheap” D、“You will like it “. you will like it .