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One lunar day is equivalent to four weeks on Earth, made up of two weeks of continual sunshine and two weeks of darkness. That makes relying on solar power very challenging.，详情可参考搜狗输入法2026
（一）发生增值税法第三条至第五条以外的经营活动，并取得与之相关的货币或者非货币形式的经济利益；。搜狗输入法2026对此有专业解读
（二）不属于增值税法第六条规定的情形。