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【单选题】
基础代谢率的常用公式为A.
基础代谢率=脉率×脉压-111
B.
基础代谢率=(脉率+脉压)-111
C.
基础代谢率=(脉率-脉压)-111
D.
基础代谢率=(脉率-脉压)×111
E.
基础代谢率=(脉率-脉压)/111
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【简答题】某计数器的输出波形如图1所示,该计数器是 进制计数器。
【单选题】If the demand function is q = m- 2(ln p) over some range of values of p; then at all such values of p the absolute value of the price elasticity of demand:
A.
increases as p increases.
B.
decreases as p increases.
C.
is constant as p changes.
D.
increases with p at small values and decreases with p at large values.
【简答题】某计数器的输出波形如图1所示,该计数器是( )进制计数器。
【单选题】Refer to Figure . As price falls from P A to P B , which demand curve represents the most elastic demand?
A.
D 1
B.
D 2
C.
D 3
D.
All of the above are equally elastic
【单选题】The following demand and supply functions for a given product: Q d = 1,000 – 20P, Q s = –200 + 100P What is the excess demand or excess supply at a price of $14?
A.
Excess demand of 250 units
B.
Excess supply of 480 units
C.
Excess supply of 600 units
D.
Excess supply of 720 units
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