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关于乙醇同分异构体羟基在边端与氧原子在两碳之间的化学性质有什么区别?同物质量与钠反应耗钠量有何区别 卤花烃发生消除反应常常服从（）经验规则? 硫黄是什么脸上张了黑豆该怎么办 该怎么去处理 硫黄有何用处 请问卤代烷烃和锌怎么反应呢 硫黄的作用是什么呢?拜托了各位 谢谢可以洗脸吗? 卤代烷烃与卤代烯烃哪个更容易发生消去反应? 硫黄是什么可以吃吗 camping is a fun activity for the family to 快 我现在就要知道 After dinner the family members sat around and had a pleasant chat ____ a cup of tea.[A] over [B] in[C] on [D] with the family members gathered at the tableA dozen family members gathered at the table _____ were traditional local foods such as preserved harm sausage .A what B which C that D where 选D为什么 质点在一段时间内运动的位移--时间图像,画出该时间内它的速度——时间图像图像如下注 bc=cd 可以不画图,给出那几个点的坐标也行 蚕的一生要脱几次皮? The enening meal is a time ___ all the family members get together and discuss the day's events.A.whenB.in thatC.thenD.in it请问选哪个?选和不选的原因?顺便把句子翻译成中文.谢谢! people and is when all family members get together.(用中文翻译) All family members get together on New Year's Eve to have a big meal. 对冲基金做空人民币是什么意思 甲、乙两物体的位移-时间图像,（我描述一下.甲是从原点出发的一条直线,乙是从纵坐标乙是从纵坐标出发的直线,他们做匀速直线运动吗?为什么?什么叫匀速直线运动?在那个图像里应怎么显 两个小孩如图沿不同路径滑滑梯下落,请用加速度和图像解释为何所用时间相同. 火箭的燃料是液态好还是固态好,为什么 中国哪个地方阳光明媚四季如春 中国哪个地方没有夏天?四季如春? 为什么火箭燃料从固态发展到液态具有重大意义 还有哪些动物也像蚕一样,一生要经过几次变化 蚕一生的生长变化过程是什么? 举例说明,还有哪些动物像蚕一样,一生要经过几次变化 英语句子的题目:例句:Our homes will be warm in winter and cool in summer(comfortable)例句:Our homes will be warm in winter and cool in summer(comfortable),解答为Our comfortable homes will be warm in winter and cool in summer.1Cars will b 蚕是昆虫吗它的一生会有什么变化 Their dream homes will be （warm in winter and cool in summer）.( )will their dream homes( )( 对括号部分提问? 填空 In the __f____,homes will be warm in winter and cool in __s____ ,__s____they'll填空In the __f____,homes will be warm in winter and cool in __s____ ,__s____they'll be very comfortable.We'll __u____ the sun to __h___ our homes.No __o____ will Their dream homes will be warm in winter and coll in summer. our homes will be warm in winter改为一般疑问句并给出否定回答