A:Hi, Li Ming.
B:Hi, Mrs Li.
A:What are you doing?
B:I'm reading a story book. What are you doing?
A:I'm writing a letter. May I look at your story book?
B:Certainly. Here you are.
A:Thank you.
《吕氏春秋·上农》在描述农耕之利时不无夸张地说:一个农夫耕种肥沃的土地可以养活九口人,耕种一般的土地也能养活五口人。战国时期农业收益的增加( )
若1a<1b<0,则下列结论不正确的是( )
列宁在辛亥革命后指出,孙中山的思想首先是同“防止资本主义的愿望结合在一起的”。列宁具体指的是孙中山的( )