沼气发酵原料堆沤处理方法有几种？
参考答案：
沼气发酵原料堆沤处理方法有两种，分别为池外堆沤和池内堆沤。
___ three times in a row, the boxer decided to make a fourth attempt, though．
A．Having defeated
B．To have defeated
C．Having been defeated
D．To defeat
“你有情，我有情，依法诚信纳税献真情；你出力，我出力，促进民生发展齐努力；你受益，我受益，共享和谐社会最美丽。”这条税收宣传短信告诉我们（）
A.国家税收越多越好
B.纳税越多权利越多
C.税务机关必须依法征税
D.要自觉履行纳税义务
