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【单选题】
MCS-51单片机在执行MOVXA，@DPTR指令时，其寻址单元的地址是由()A.
P0口送高8位，P2口送高8位
B.
P0口送低8位，P2口送高8位
C.
P0口送低8位，P2口送低8位
D.
P0口送高8位，P2口送低8位
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反馈参考答案：
举一反三
【单选题】Calculate the base current for this circuit. 【图片】
A.
28.4 μA
B.
20.2 μA
C.
28.3 μA
D.
Need more information to calculate the base current
【简答题】Did the woman calculate correctly?______.
【单选题】Calculate the base current for this circuit.( )
A.
28.4 μA
B.
20.2 μA
C.
28.3 μA
D.
Need more information to calculate the base current
【简答题】To calculate niet income of a business that sells products, first _________ the cost of goods sold and then _________ operationg expenses.
【简答题】Please solve the next problems: (1) Let , and , calculate (2)Let and , calculate (3) Let , , calculate .
【简答题】期货交易和现货交易有哪些区别?期货交易具有哪些特点和功能?
【单选题】That was a ______ threat: she meant to annoy you.
A.
calculating
B.
calculated
C.
calculation
D.
calculate
【简答题】A．AVERAGE B．SUM C．COUNT D．CALCULATE
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