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【单选题】
电路如图所示,设RL=8Ω,输入信号vi为正弦波,若BJT的饱和压降可忽略不计,负载可得到的最大不失真的输出功率为9W时,电源电压VCC至少应该为 ( ) 。A.
大于等于12V
B.
大于等于18V
C.
大于等于24V
D.
大于等于6V
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举一反三
【单选题】According to the theory of liquidity preference, if the demand for real money balances exceeds the supply of real money balances, individuals will:
A.
sell interest-earning assets in order to obtain non-interest-bearing money.
B.
purchase interest-earning assets in order to reduce holdings of non-interest-bearing money.
C.
purchase fewer goods and services.
D.
be content with their portfolios.
【单选题】If brokerage commissions on bond sales decrease, then, other things equal, the demand for bonds will ________ and the demand for real estate will ________.
A.
increase; increase
B.
increase; decrease
C.
decrease; decrease
D.
decrease; increase
【简答题】Section A (91) In the last few years the conventional wisdom has been that the advent of the new media will hasten the demise of print, and that the culture of print will soon be a thing of the past. ...
【单选题】The following scenario relates to questions 87 - 91 You are the audit manager in the firm of Wright & Co, a large accountancy firm with 30 offices. It is January 20X6, and a new intake of graduates an...
A.
1 and 3
B.
2 and 4
C.
2 and 3
D.
1 and 4
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