液体的压强取决于其容重和深度,与容器形状无关。( ) 发布时间:2017-07-05 09:21 │ 来源:www.tikuol.com 题型:判断题 问题: 液体的压强取决于其容重和深度,与容器形状无关。( )
题型:判断题 在探究氧气的制备和性质时,2个小组的同学分别将带火星的木条放入各自刚收集满氧气的集气瓶中,带火星的木条都复燃,这说明( )A.分子之间有间隔B.分子可以再分C.分子在不断运动D.同种物质的分子性质相同 查看答案
题型:判断题 Many teachers believe that children learn _____ life, not just from their textbooks. [ ]A. of B. from C. for D. with 查看答案
题型:判断题 When household incomes go down and the quantity of a product demanded goes up, the product is:()A. an inferior good.B. a necessity.C. a luxury good. 查看答案