1、器材：天平、烧杯、足量的水和牛奶，测牛奶的密度，写出实验步骤和表达式

妈妈似乎生我气了用英语怎么说 生孩子的气没必要.用英语怎么说 关于意志力的成语 再写几个精卫填海这样的成语11 和精卫填海类似的成语成语!急 急 急 精卫填海属于什么类的成语是磨砺意志 是艰苦奋斗 是尽职尽责 是不怕困难 还是忠诚 龟兔10000米赛跑兔速是龟速5倍从起点同时出龟不停地跑兔到一地睡龟到时兔差100米,那么兔睡时龟跑几千米?过程说明 你生你儿子的气英语怎么说 on holiday与take a holiday的区别 take a holiday同意短语 Happy Women's Day!On this happy festival,you can have a happy and nice holiday!Enjoy yourself,takeHappy Women's Day!On this happy festival,you can have a happy and nice holiday!Enjoy yourself,take easy,and have a rest!Hope you can happy every day ,al 乌龟和兔子赛跑从A到C乌龟跑1道兔子跑2道他们所跑得俩条路长度相同吗为什么 乌龟和兔子赛跑,从A到C,乌龟跑1道,兔子跑2道.他们所跑得俩条路长度相同吗?为什么? 你生我的气了吗?英语怎么说 用介词填空 She is very popular ___ school. do you think football is very popular in our school_______?Aat that time Bat the moment Cfrom now on Din a minute She is ______________ of the three.Our school is very __________.( large)Peter runs as ______ as Ken does.( fast)Peter doesn’t run so ________ as Ken.( fast)Ken runs ________ than Peter. vacation和holiday之间的区别是什么? 1.--Do you know____?--Yes,I do.She is Vicky Zhao,a very popular actress--Do you know____?--Yes,I do.She is Vicky Zhao,a very popular actress.A.who is she B.who was she C.who she was D.who she isThe blue team is very L____to win the game. （ Miss Zhao is young,and she teach us English.She is f___ to us,but her classes are very i_____.两个横线上分别填什么?一定要通顺! 我以前看过一个讲宇宙的纪录片,是从地球出发,一直到宇宙边缘,大概1个半小时 求给妈妈的生日祝福语!谢谢 求母亲生日的祝福语写在贺卡上的.要求：1、字数：大约300-500字左右.2、情感真挚.不做作.3、原创最好.4、禁止直接复制粘贴! 给妈妈的生日祝词!和妈妈没生活在一个地方,她要过生日了.想发条短信祝她生日快乐.希望能真诚一些的. 夏天的英文单词 关于夏天的英文单词都有哪些凡是与夏天有关的词语都算是哦. 英文单词写法写一个英语文章的时候,由于一行里的最后一个单词太长了,要把它续写到下一下,如何连接呢?如：It is so dangerous.如果dangerous太长,要续写到写一行,要怎样写呢? 用“骄傲”组词 （指不谦虚)和（指很自豪） 谦虚使人进步,骄傲使人,写出相反的词 2011有什么好听的英文歌. You'll be relaxing when you b_____from your vacation You’ll be _____when you return form your vacation.relaxrelaxingrelaxed