Suppose that a firm can produce its output at either of two plants. If profits are maximized, which of the following statements is true?
A. The marginal cost at the first plant must equal marginal revenue.
B. The marginal cost at the second plant must equal marginal revenue.
C. The marginal cost at the two plants must be equal.
D. all of the above
E. none of the above
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The monopolist has no supply curve because
A. the quantity supplied at any particular price depends on the monopolist's demand curve.
B. the monopolist's marginal cost curve changes considerably over time.
C. the relationship between price and quantity depends on both marginal cost and average cost.
D. there is a single seller in the market.
E. although there is only a single seller at the current price, it is impossible to know how many sellers would be in the market at higher prices.
The monopoly supply curve is the
A. same as the competitive market supply curve.
B. portion of marginal costs curve where marginal costs exceed the minimum value of average variable costs.
C. result of market power and production costs.
D. none of the above
For a monopolist, changes in demand will lead to changes in
A. price with no change in output.
B. output with no change in price.
C. both price and quantity.
D. any of the above can be true.
在片剂中乙酰水杨酸含量的测定实验中，乙酰水杨酸和NaOH的化学计量关系是多少( )
A. 1:1
B. 1:2
C. 1:3
D. 1:4
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