（）曾明确指出：“社会主义的本质，是解放生产力，发展生产力，消灭剥削，消除两极分化，最终达到共同富裕。 ["毛泽东","周恩来","邓小平","江泽民"]
隶农制
Refer to the exhibit. A trunk link is connected between switch A_SW and switch D_SW. Based on the configuration shown in the exhibit， how would the traffic coming from the switch A_SW be managed？ （） ["The trunk port Fa0\/1 on switch A_SW will trust allCoS values on the frames coming from the IP phone.","The trunk port Fa0\/1 on switch A_SW will trust allCoS values on the frames received on the IP phone.","The trunk port Fa0\/1 on switch D_SW will trust allCoS values on the frames coming from port Fa0\/1 on A_SW.","The trunk port Fa0\/1 on switch D_SW will trust allCoS values on the frames received on the A_SW switch port Fa0\/4.","The trunk port Fa0\/1 on switch D_SW will trust allCoS values on the frames received on the IP phone port."]
根据GB/T12243-2005《弹簧直接载荷式安全阀》的规定：可锻铸铁安全阀限用于公称压力（）MPa及以下。 ["0.8","1","1.6","2.5"]
组合思维方法和组合设计技巧是发明创造者需要掌握的基本发明创造技能。组合型创新技法主要有（）、（）、（）、（）。 ["同类组合法","异类组合法","主体附加法","重组组合法"]
什么是酸雨？
