运动会时学校买来大、小笔记本共30本作为奖品，共用去266，大笔记本每本11元，小笔记本每本7元。学

硝石灰砂浆表面会迅速硬化的主要原因是?[写化学方程试]如题 石灰砂浆广泛用来粘合砖石,石灰砂浆表面迅速硬化的主要原因（用化学方程式表示) 成人可以购买学生票吗 谁知道提高逻辑思维是不是要多做一写有难度和奥数题呀? "The main meal of the Today,most people refer to it as dinner or supper_____people eat their main meal in the eveningsrather than at midday.填上一个适当的连词 D___ is sweet food served after the main part of a meal in wastern films. 石灰浆广泛用来粘合砖石,石灰沙浆表面迅速硬化的化学方程式 对 several hours 提问用how soon 还是how long? 石灰砂浆会使砖石迅速硬化,它的化学方程式是······? 用How long,take repair,about,two hours写两个句子原来有一幅图的,就是修电视的.用这些词编一个对话,两个句子,一问一答.take和rapair中间有逗号，是分开的 对two hours提问 和对 for two hours提问 都是用how long吗 为什么 The mesl will take two hours 用how long 对two hours 提问 We eat mooncake Mid-Autumn festival.(用rice dumplings改写为选择疑问句) tom has rice for lunch.（改为一般疑问句） 1.She likes rice.(改为否定句) 2.Does Tom like bread?(改1.She likes rice.(改为否定句)2.Does Tom like bread?(改为陈述句)3.does,she,tomatoes,like,?(连词成句) 问大家两道英语选择题.1,In China,traffic keeps on the（）side of the road.A right B left C middle2,We must not cross the road if the lights（）red. A is B are C turns In England,Tom walks on the left side of the road.这句话是对还是错 为什么邻居要在他家门前挂一大镜子我和邻居都住一楼,儿子是我同学,他家去年死了老爸,今年来往的人很多,昨天我 无意间发现他家正门口放一镜子,方的 ,好大,我懂一点风水,也 知道怎么应 邻居在他家门前挂了个镜子,有什么说法吗 麦田怪圈是怎么形成的呢?跟外星人有关吗?我是认真的! I have ___writing-paper A.some B.anyC.an D.a选择,急 i like rice dumpings改一般疑问句 He'd like a medium bowl(改为一般疑问句) 门前挂镜子是什么意思 小时候自家门前挂镜子我记得小时候,家在市郊,都是平房,我家是老房子,我家前面是个新盖不久的大瓦房,比我家高不少,有段时间家里会在大门顶上挂一面镜子,对照着前面的大瓦房,当时问父 stamp+s变复数是stamps,stamps的音标 kites的音标是什么? 急急急急急急急急急急急. There _____ some writing paper on my desk .Do you want ___? 我想向我的妈妈要一些信纸I want to my mother some writing paper我想向我的妈妈要一些信纸I want to ____my mother ____some writing paper 修来病句 英语修该病句Are there any pencil on the chair?This is my brother.He name is Henry.How much days are there in a week?