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【单选题】
下列电路属于组合逻辑电路的是 。A.
计数器
B.
放大器
C.
译码器
D.
编码器
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举一反三
【单选题】That most used cars are sold by intermediaries (i.e., used car dealers) provides evidence that these intermediaries
A.
have been afforded special government treatment, since used car dealers do not provide information that is valued by consumers of used cars.
B.
are able to prevent potential competitors from free-riding off the information that they provide.
C.
have failed to solve adverse selection problems in this market because "lemons" continue to be traded.
D.
have solved the moral hazard problem by providing valuable information to their customers.
【单选题】In the nation of Transporta, the income elasticity of demand for used cars is -2.66. So when incomes in this nation increase by 10 percent,
A.
the quantity of used cars demanded will increase by 26.6 percent.
B.
used cars will be normal goods.
C.
the quantity of used cars demanded will decrease by 26.6 percent.
D.
the demand curve for used cars will shift rightward.
【单选题】Despite their varied designs, navigation computers used in cars ______.
A.
are more or less the same price
B.
provide directions in much the same way
C.
work on more or less the same principles
D.
receive instructions from the same satellites
【单选题】What are parking meters used to?
A.
To limit the numbers of cars parked in the streets.
B.
To prevent cars parked in the street from being stolen.
C.
To make it convenient for drivers to pay the fee.
D.
To limit the time of cars left in the streets.
【单选题】《义务教育语文课程标准》(2011年版 )关于语文课程性质的论述中,第一句话是:语文课程是一门( )的综合性、实践性课程。
A.
学习语言文字运用
B.
具备工具性的
C.
具备人文性的
D.
注重情感表达的
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