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单项选择题
4. 逻辑链接控制(LLC, Logical Link Control) 层在MAC层
A、之上
B、之下
C、两者无关
D、以上都不是
B、之下
C、两者无关
D、以上都不是
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问答题
An increase of debt can mitigate the conflicts between and by reducing the amount of free cash flow available to managers.
答案：
Agency conflicts and underinvestment problems.
