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【单选题】
8051微控制器的P1口用作输入口时,执行MOV P1, #0FFH后再执行MOV A, P1指令,累加器A中的内容为____。A.
00H
B.
11H
C.
FFH
D.
不确定
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举一反三
【单选题】Which of the following statements best explains how the use of money in an economy increases economic efficiency?
A.
Money increases economic efficiency because it is costless to produce.
B.
Money increases economic efficiency because it discourages specialization.
C.
Money increases economic efficiency because it decreases transactions costs.
D.
Money cannot have an effect on economic efficiency.
【简答题】A) Threw her a surprise party. B) Took her on a trip overseas. C) Bought her a good necklace . D) Gave her a big model plane .
【单选题】_____frightened us ____the electricity was suddenly cut off, which threw all of us into the dark.
A.
9. _____frightened us ____the electricity was suddenly cut off, which threw all of us into the dark. A． It was; that
B.
What was; most was that
C.
It ; most what
D.
What; most was that
【简答题】简述马克思主义教育学的基本观点。
【单选题】The supply of money increases when
A.
the value of money increases.
B.
the interest rate increases.
C.
the Fed makes open-market purchases.
D.
None of the above is correct.
【单选题】The current demand for money increases when
A.
current real income increases.
B.
future real income decreases.
C.
the nominal rate of interest increases.
D.
none of the above.
【单选题】She took off her boots and ______ on the floor near the door.
A.
dropped
B.
fen
C.
pushed
D.
threw
【单选题】When the interest rate increases, the opportunity cost of holding money
A.
increases, so the quantity of money demanded increases.
B.
increases, so the quantity of money demanded decreases.
C.
decreases, so the quantity of money demanded increases.
D.
decreases, so the quantity of money demanded decreases.
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