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【单选题】
下列信号中属于功率信号的是____。A.
cos tε／3(t)
B.
e-tε(t)
C.
te-tε(t)
D.
e-｜t｜
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举一反三
【简答题】某项目初始投资为1000万元,不考虑建设期,该方案能经营4年,每年净收益为400万元。已知行业基准折现率为10%,请计算净年值的大小。(结果保留3位小数)
【单选题】[Based on Table 5-2] Using the midpoint method, if the price falls from $40 to $20, the absolute value of the price elastic-ity of demand is
A.
20.
B.
10.
C.
2.33.
D.
0.43.
【单选题】If the demand curve for a good is a downward sloping straight line, the demand for the good will be more price elastic the higher is the
A.
price of the good.
B.
price of complements.
C.
income of consumers.
D.
income elasticity of demand for that good.
【简答题】某项目初始投资为1000万元,不考虑建设期,该方案能经营4年,每年净收益为400万元。已知行业基准折现率为10%,请计算净现值的大小。
【简答题】考察组织结构的三个维度(即组织结构的三层含义)是()。 A复杂化 B简单化 C正规化 D集权化 E集成化
【单选题】Demand is elastic if the price elasticity of demand is
A.
less than 1.
B.
equal to 1.
C.
equal to 0.
D.
greater than 1.
【单选题】The demand for a product is said to be price elastic if the ( )
A.
percentage change in quantity demanded exceeds the percentage change in price
B.
change in demand exceeds the change in price
C.
percentage change in price exceeds the percentage change in quantity demanded
D.
change in price exceeds the change in demand
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