A profit-maximizing monopolist is able to practice third degree price discrimination. If he charges p 1 in market 1 and p 2 in market 2, where p 1 > p 2 ; it must be that the quantity sold in market 1 is smaller than the quantity sold in market 2.
A.
正确
B.
错误
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【判断题】已知学生基本信息student包括(xuehao学号,姓名name,...),查询所有姓刘的学生语句为“select * from student where name like '刘%'”