【判断题】生产者剩余是指生产者获得的收入中大于它要求所得到的最低回报部分
【单选题】下列哪项对提高母猪采食量几乎没有促进作用?
【单选题】Although he is very old, _________ he works very hard.
【单选题】He is very old, ___ he still works very hard.
【单选题】—_______he is very old, he works very hard. — Wow, great. I should learn from him.
【单选题】依次填入句中横线处的词语正确的一项是( ) (1)我们没有立即上路,老人也没有离开,我们决定把小茅屋________一下。 (2)姐姐出嫁后,是小姑娘接过任务,常来______这小茅屋。 (3)不论是谁,________是触犯了党纪国法,________要依法依纪严格查处、惩治。