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【单选题】
盈亏临界点不变，销售量越大，能实现的利润( )。 A．越多 B．越少 C．不变 D．等于O
A.
盈亏临界点不变，销售量越大，能实现的利润( )。 A.越多
B.
越少
C.
不变
D.
等于0
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B.
1级为没有社区居民的个人资料，对社区的问题稍有了解
C.
2级为医生已有间接的二手资料，但对社区的健康问题仅仅是有所了解
D.
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相关题目：
【单选题】关于COPC的分级，以下说法错误的是()
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0级为根本不合格，是指对就医的病人提供不连续的服务
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