A natural monopoly is most likely to exist when: （）
ATC increases as output increases.
B. economies of scale are great.
C. all production is divided up between just a few firms.
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王小三是某县大话乡人民代表大会人大代表，由于其触犯刑律，原选区选民50人依照法定程序要求罢免王小三的代表资格。依照有关规定，罢免王小三的乡级人民代表大会代表身份，须经原选区( )的选民通过。
A. 过半数
B. 2/3以上多数
C. 全体
D. 1/3以上多数
風呂のかまがつまったので、家主に修理を頼んだ。
A. 缶
B. 釜
C. 鎖
D. 鍋
I think Chinese food is quite different ______ American food.
A. from
B. in
C. to
Relative to stock exchanges, OTC stock markets do not: （）
A. trade a higher volume of securities.
B. trade a higher market value of securities.
C. trade a larger volume of U. S. Government bonds.
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