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德崧电子的轻触式开关产品有什么特点,好用不? 常见的氧化剂 含有高价态元素的化合物 常见的氧化剂中的活泼非金属单质有?含高价态元素的化合物是氧化剂的有? 1.氧化性和还原性指元素还是化合物?2.变价元素详细列表,有很全的口诀也行. 一首歌,有这么一句话.什么 出现一片蓝蓝的海如题 小辉乘飞机参加数学竞赛,机窗外是一片蓝色的大海,他看到云海占整个画面的1/2,并遮住了一个岛的1/4,露出海岛的1/4,球被遮住的画面占整个海面的几分之几? 四十不惑是什么意思? 什么是四十不惑 "四十不惑“是什么意思? 四十不惑到底是什么意思啊? 真的能够四十不惑吗? Li Ming is in now改为同义句Li Ming（）（）now 请问,北京市区内,为什么阴天的时候,晚上天空的颜色是粉红色的? 天空的颜色为什么和海一样都是蓝色呢? If sb.stole your thunder,would you tell the police?这句英文怎么翻译啊? Don't let you into my memory,ok? He often tells interesting stories to the class.（变同义句）The class often _____ _____to him tell interesting stories. He often tells interesting stories to the class.(改为同义句)The class often _____ him _____ tell interesting stories. He often tells interesting stories to the class的同义句 改为同义句.He often tells interesting stories to the class.He often tells interesting stories to the class.改为同义句.The class often _____ him _____ tell interesting stories. I have a neck,but I do not have the head.You can put the watter into my body2.Two sisters,beautiful and bright,they always run,but never meet,What are they?3.Long neck but no hands.Hundred legs but can not stand.Runs through the house when the floor Tell me about a time when you failed to reach a goal. He often tells interesting stories ( )the class.A in B for C at D to 选哪个? tell me about a time when.表示过去还是将来 tell me about a time when you worked in a really effective team?用英文 谢谢了（急用）一次高效率的团队合作 100字左右吧 What is you father's hobby?回答：He likes driving a car .这样回答对吗? why are you driving so fast?_____ a friend A.meet B.to meet You are leaving school soon.What will you say to your teachers and friends and what are your feelin不是，是写8句话 能帮我看下这句话说英文说的对吗?Could you please help book a conference room from 14:30 to 16:00 next Monday (10 March).I have booked conference room from booking system,but already full.Please help,thanks.背景:我想订一间会议 看看这句话说的对不对,是关于元素周期的距离越近的电子与核间的引力越大,因此其能量也越高.最高正价为+2的元素不一定位于第二主族这两句话第一个为什么是错的,第二个为什么是对的 Swing open into the spring.啥意思 请尽量翻的又美又贴切. shape…into/from/out of分别是什么意思?