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根据《建设工程工程量清单计价规范》GB50500-2013,在没有专门说明时,所有清单项目的工程量以()为准。
A . 工程净量加上合理损耗
B . 实体工程量
C . 实体工程量加上辅助工程量
D . 实体工程量扣除必要的损耗
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