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【单选题】
变速器内同步器的作用是将两个不同步的( )连接起来使之同步。A.
齿轮
B.
输入轴
C.
输出轴
D.
输入轴和输出轴
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反馈参考答案：
举一反三
【简答题】“典范的现代白话文著作”通常指的就是( )、( )的重要著作,国家和政府颁布的( )、法规和( )等。
【单选题】Which of the following is false of perfectly competitive firms?
A.
A perfectly competitive market is approximated in highly organized markets for securities and agricultural commodities.
B.
The perfectly competitive model does not require any knowledge on the part of individual buyers and sellers about market demand and supply curves.
C.
Because perfectly competitive firms are price takers, each firm's demand curve remains unchanged even when the market price changes.
D.
In a perfectly competitive market, marginal revenue is constant and equal to the market price.
【判断题】A firm operating in a perfectly competitive industry will continue to operate in the short run but earn losses if the market price is less than that firm’s average variable cost but greater than the f...
A.
正确
B.
错误
【简答题】“ 典范的现代白话文著作 ” 通常指的就是( )、政治家 的重要著作,国家和政府颁布的法律 、法规和重要文件 等。
【单选题】The short-run market supply curve in a perfectly competitive industry ( )
A.
shows the total quantity supplied by all firms at each possible price.
B.
is perfectly inelastic at the market price.
C.
is perfectly elastic at the market price.
D.
is usually downward-sloping.
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