(____) No, I don't like winter.
(____) Which season do you like best, Lily?
(____) Winter. I can play with snow.
(____) So I like autumn best. It's always sunny and cool.
(____) What about you? Do you like winter, too?
(____) It's too cold.
某商店购进一种商品,单价为30元.试销中发现这种商品每天的销售量P(件)与每件的销售价x(元)满足关系:P=100-2x.若商店在试销期间每天销售这种商品获得200元的利润,根据题意,下面所列方程正确的是( )
在“调查公园的生物”活动中,你认为哪位同学的做法是正确的( )