①Kitty right photos how old my new friends in the green shirt
②do you have brothers and sisters yes i do
②Do you have brothers and sisters? Yes, I do.
①竞争会使价格上涨 ②供求关系影响价格
③价值不能决定价格 ④价值规律在起作用
北京近两年来开展了中心城区通风廊道、绿道等系统研究,以提升城市整体空气流通性。据此回答下列各题。
— Please don't laugh at this poor boy.
一 Sorry, Mum. I won't do that again.
小明用100元钱去购买笔记本和钢笔共30件,如果每支钢笔5元,每个笔记本2元,那么小明最多能买( )支钢笔.