每年淘宝网都会举办“双十一”购物活动,许多商家都会利用这个契机进行打折让利的促销活动.甲网店销售一件A商品成本为50元,网上标价80元.
一天中气温最高的时间出现在( )
Mary's grandpa is always ______ in the mountain village. He tells her he feels very______. So she's going to visit him next week.
日常生活中,我们常说的“无土栽培”是指( )