题目内容
在80C51单片机中的地址总线的低8位通过下面哪项实现。()
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在80C51单片机中用来存放程序状态的寄存器是哪项。()
在80C51单片机中的数据总线通过下面哪项实现。（ ）
在80C51单片机中PSW寄存器的位数。()
A 1: 1.______________________ , but we have a problem.A 2:What’s that?A 1:I waslooking at this month’s balance sheet. Our accounts payableshowsthat we 2.___________$15,000.A 2: Why is that a problem?A 1: Well, we 3. ___________ have $10,000 in thebank.A 2: Isee.We have to 4. ___________ some money to pay the difference.A 1: Isn’t it a 5. ___________ ___________ to take onmore debt?A 2: No. Our accounts receivable shows $15,000.We canuse that to 6.__________ ___________somedebt nextmonth.
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