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【简答题】
将图4-14中的两个异或两个与门,请对这个新电路进行分析,要求做出状态表和状态图。
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反馈参考答案：
举一反三
【单选题】On returning home from school, Xiao Hong______ her MP4 and threw herself down onto the bed, ______ music.
A.
put on; listening to
B.
put on; listened to
C.
left out; listened to
D.
left out; listening to
【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.
【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.
【单选题】It was such a pity that she threw __________ her chance of happiness.
A.
at
B.
back
C.
in
D.
away
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