Who is this?
She has got some photos.
When did you go there?
The mountains are really beautiful.
Did you go with your friends?
Who is this?
She has got some photos.
When did you go there?
The mountains are really beautiful.
Did you go with your friends?
最新问答: 数学辅助角公式的推导asinx+bcosx=√(a^2+b^2)[sinx*a/√(a^2+b^2)+cosx*b/√( 五年级第一课是甚么? 已知l a-2 l+lb-3l+l c-al=0,计算a+2d+3c 《薛谭学讴》中的“自谓尽之”的“尽”的解释! 我要一篇井底之蛙逃生记的作文 300字以上 仿照例句把句子改写的更富有诗情画意. 苏教版江苏阜宁实验初中第九期假期作业《白纸黑字》短文阅读答案 乙醇是否能和溴水发生反应而使溶液褪色? A除以B等于A乘B的倒数,要理由,好的绝对加分,以人格担保! 这几个英语句子的分析(帮忙一下,) 在溶液的导电性实验装置中放入硫酸铜溶液,通电时灯泡变亮,若不断加入某物质R,发现灯泡逐渐变暗,直至熄灭,继续加入R时,灯 如果假设12C的相对原子质量为24,且以0.024 千克12C所含有的原子数为阿伏加德罗常数,则下列数值不是原来2倍的是 用化学用语(符号)填空:(1)硫______;(2)钙______; (3)氧化铜______;(4)五氧化二 Everyone is mysterious You have no idea how Yang Ling also likes making model planes.同义句 雾是什么形态 关于纯水机和电解水试验市场上有个纯水机,他们推销的时候做的试验是电解水,纯净水没有变色,自来水变得很浑浊,这样检验水质到 球面上有三个点A、B、C.A和B,A和C间的球面距离等于大圆周长的1 /6 .B和C间的球面距离等于大圆周长的1 /4. they had a sports mrrting (on the playground )对大括号部分提问 某同学身高1.8m,体重为70㎏,在迎奥运田径运动会上他参加背越式跳高比赛,起跳后身体横着越过了1.8m高的杆,请问: