一瓶冰冻的矿泉水在室温下逐渐熔化,瓶内的冰熔化成水的过程中,不变的是() A.体 发布时间:2017-06-08 21:08 │ 来源:www.tikuol.com 题型:选择题 问题: 一瓶冰冻的矿泉水在室温下逐渐熔化,瓶内的冰熔化成水的过程中,不变的是( )A.体积B.质量C.密度D.比热容
题型:选择题 根据短文内容判断下列句子的正(T)误(F)。Cats Some cats are black. Some cats are white. Some cats are black and white. But no cats are green. This is amother cat. She has five babies. She looks after (照顾) them. Baby cats are called kittens. New kittens can not see. They can't open their eyes, but they can find their milk. Cats eat meat and fish. Cats drink milk. They drink water, too. Cats like catching birds. Cats like catching mice. Kittens are too small. They can't catch birds or mice,but they like to play with things.( ) 1. Cats are all black and white. ( ) 2. Kittens are baby cats.( ) 3. A baby cat can find her mother's milk.( ) 4. A baby cat can't see anything, but it can open its eyes.( ) 5. Kittens can't catch mice, but they can catch birds. 查看答案
题型:选择题 质量为2kg的质点在x-y平面上做曲线运动,在x方向的速度图象和y方向的位移图象如图所示,下列说法正确的是( )A.质点的初速度为5m/sB.质点所受的合外力为3NC.质点初速度的方向与合外力方向垂直D.2s末质点速度大小为6m/s 查看答案
题型:选择题 依据中国人民银行《应收账款质押登记办法》的规定,应收账款的权利包括现有的和未来的金融债权及其产生的收益,具体包括()。A.公路收费权B.提供服务产生的债权C.出租不动产产生的债权D.销售贷物产生的债权E.出租动产产生的债权 查看答案