开展党的群众路线教育实践活动，是保持党的先进性和纯洁性、巩固党的执政基础和执政地位的必然要求。
参考答案：对
有关痈的处理方法，错误的是（）
A.初期治疗与疖相同
B.中央部坏死组织应切除
C.切口大小与皮肤病变边缘平齐
D.全身反应严重应切开
E.创面大者可择期植皮
It took ______ building supplies to construct these energy-saving houses. It took brains, too.
A．other than
B．more than
C．rather than
D．less than
