【判断题】3农民问题是中国革命的中心问题,因此,农民是中国革命的天然领导者。
【单选题】对锅炉点火前的准备工作不正确的要求是 _________ 。
【简答题】a recess or partly enclosed extension connected to or forming part of a room; 凹处 _________
【判断题】边际技术替代率递减规律使得向右下方倾斜的等产量曲线必然凸向原点。
【简答题】a recess or partly enclosed extension connected to or forming part of a room a_________
【判断题】边际技术替代率递减规律使得向右下方倾斜的等产量曲线必然凸向原点。 ( )
【简答题】It is partly _____ the summer day is longerthat everything has a larger time to warm up. A.for B. that C. the reason D.because