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【单选题】
某职业学校在五四青年节举办了一场,活动中,同学们模拟了中国传统的“笄礼”(中国古代汉民族女性的成年礼)。对此看法错误的是( )。A.
同学们模拟古代“笄礼”有利于传播中华传统文化,值得提倡
B.
是“八礼四仪”中的一项重要内容,是应该大力弘扬的先进文化活动
C.
活动能起到启迪思想、鼓舞人心的积极作用
D.
同学们模拟古代“笄礼”是宣扬落后文化,不值得提倡
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皮皮学刷刷变学霸
举一反三
【单选题】Which of the following is a characteristic of a natural monopoly?
A.
Marginal cost declines over large regions of output.
B.
Average total cost declines over large regions of output.
C.
The product sold is a natural resource such as diamonds or water.
D.
All of the above are correct.
【单选题】A natural monopoly occurs when
A.
the product is sold in its natural state (such as water or diamonds).
B.
there are economies of scale over the relevant range of output.
C.
the firm is characterized by a rising marginal cost curve.
D.
production requires the use of free natural resources, such as water or air.
【单选题】a natural monopoly exists because:
A.
the government is the only supplier
B.
economic and technical conditions permit only one efficient supplier
C.
other firms are unable to enter the industy
D.
the firm owns natural resources
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