单选题:电信市场准入管制的目标就是寻找(  )的合理协调点,建立合理的市场结构,避免竞争不足和过度竞争。

题目内容:
电信市场准入管制的目标就是寻找(  )的合理协调点,建立合理的市场结构,避免竞争不足和过度竞争。 A.规模经济与外部经济
B.规模经济与竞争活力
C.计划经济与市场经济
D.竞争活力与市场机制

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