【简答题】An outstanding example of hardwired capabilities with great flexibility for programming by us is language. Specialists agree that 'the human brain genetically programmed for language 【1】______ develop...
【单选题】When new firms choose to enter monopolistically competitive markets:
A.
there must be little diversity of products in the market.
B.
they are guaranteed economic profits upon entry.
C.
some firms in the market must be making economic profits.
D.
the demand curve faced by an established firm will shift to the right as a result.
【单选题】When new firms enter a monopolistically competitive industry:
A.
the average total cost curves of established firms will shift downward.
B.
the demand curve of an established firm is reduced at each level of output.
C.
the established firms will each increase production.
D.
the average revenue received by an established firm will increase at each level of output.
【单选题】When new firms enter a perfectly competitive market,
B.
the short-run market supply curve shifts right.
C.
the short-run market supply curve shifts left.
D.
existing firms will increase prices in response to the entry of the new firms.
【单选题】关于机油消耗过大的说法不正确的是( )。
【单选题】When new firms enter a perfectly competitive market,
B.
the short-run market supply curve shifts right.
C.
the short-run market supply curve shifts left.
D.
existing firms will increase prices to keep the new firms from entering.
【单选题】I类砂宜用于强度等级大于( )的水泥混凝土。
【单选题】The amazing success of humans as a【1】is the result of the evolutionary development of our brains which has led, among other things, to tool-using, tool-making, the【2】to solve problems by logical reaso...
【单选题】When new firms enter a perfectly competitive market,
A.
economic profits of existing firms will continue to be zero.
B.
entering firms will earn zero economic profit upon entry into the market.
C.
existing firms may see their costs rise as more firms compete for limited resources.
D.
prices will rise as existing firms raise prices to keep new firms out of the market.
【单选题】When new firms enter a perfectly competitive market,
A.
profits of existing firms will fall.
B.
entering firms will earn zero profit as soon as they enter.
C.
existing firms will see their costs rise.
D.
consumers will likely observe increasing prices.