The girl often plays _______ piano in he 发布时间:2017-06-08 20:50 │ 来源:www.tikuol.com 题型:选择题 问题: The girl often plays _______ piano in her bedroom.A.anB.theC./D.a
题型:选择题 — Sorry, I couldn’t come to the party. I was sick that day.— ____. A.I don’t know thatB.That’s all rightC.Yes, we’ll have another partyD.No, the party wasn’t held 查看答案
题型:选择题 (1)红磷燃烧除需要氧气,还需要满足的条件是什么?(2)按右图装置做测定空气中氧气含量的实验时,要达到实验目的,反应物或装置方面应满足的条件是什么?(答出一条即可)(3)该实验还可说明氮气具有汁么性质?(答出一条即可)(4)写出该实验中有关反应的化学方程式。 查看答案