【单选题】
最佳资本结构是指企业在一定时期最适宜其有关条件下（ ）
①
企业价值最大的资本结构
②
企业目标资本结构
③
加权平均的资本成本最低的目标资本结构
④
加权平均资本成本最低，企业价值最大的资本结构
【单选题】
婴幼儿体内生长激素分泌最旺盛的时间段是( )。
①
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②
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③
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④
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