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【单选题】
The quantity of oil injected into the cylinder can be regulated _____.A.
by turning the pump plunger
B.
by vary the fuel valve spring force
C.
by no means by controlling the governor
D.
by enlarging or diminishing the injection hole
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举一反三
【单选题】Which of the following are barriers to entry into a market:
A.
legal restrictions.
B.
high cost of entry.
C.
advertising cost.
D.
all of the above.
【简答题】进入壁垒(政府的与经济的)[barriers to entry(government and economic)]
【单选题】Which of the following could not create barriers to entry?
A.
Negative network externalities
B.
Ownership of essential inputs
C.
Economies of scale
D.
All of the above could create barriers to entry
【单选题】The level of entry barriers is only relevant to potential competitors because:
A.
Firms that are established in an industry have already overcome the barriers to entry.
B.
The existence of high entry barriers has little impact on overall industry profitability.
C.
Competitive markets are dynamic, so established firms expect that there will always be new entrants.
D.
The level of entry barriers is relevant to both existing and potential firms due to the competitive consequences for both.
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