Some teachers are used to tear off the answer keys. Some students disagree with it. They think the answer keys can check the answers in time and correct the wrong ones which are good for them to improve their innovative ability. But the other students hold a different opinion. They believe that tearing off the answer keys can prevent students from copying the answers. It also can help them thinking independently and strengthening their confidence.
最新问答: 为什么做加热蒸发时,不用再蒸发皿下方垫一块石棉网? 本文以写人为主为什么以蜡烛为题 关于拉链的英文你忘了拉拉链 英文如何表达? 指出下列说明语句,哪 指出下列说明语句,哪些是生动说明,哪些是平实说明.⑴那最轻盈、站得最高的云,叫卷云.( ) 氯化铵和氢氧化钙的化学性质 某校有师生230人,一天他们准备租车春游.已知租大客车每辆每天1000元,限坐42人. 别样“雨”情。阅读下面的一段文字,谈谈文学家常常在雨身上寄托着怎样的思想感情?(至少写出两条) 翻开诗文卷著,处处看得 游览桂林山水让你感到你是走进了连绵不断的画卷改为感叹句. 谢谢了! 甲乙两队从AB两地相对开出,0.5小时后相遇,甲车每小时行70千米,乙车每小时行50千米, 在四边形ABCD中,∠A=∠C=90度,AB=AD.若BC+CD=8,则四边形ABCD的面积是______. 下列单词变换一个字母,让它成为新单词(要写意思) 郭风长江的主题思想 急:英语1 2 3 4 5 6 7 8 9 10到100用英语怎么写和怎么读? 已知π/4 表示时间久远的词要5个 如:永恒 圆 (数学问题) 求教、在线等答案,要过程 thanks 含有字母b的英文单词有哪些?越多越好 一个数的5倍减去4.8与6的积,差是6.2,求这个数? 设f(x)在[0,+∞)连续,且∫10f(x)dx<-[1/2],limx→+∞f(x)x=0.证明:至少∃ξ∈(0,+ 要单飞咯的英文翻译