雨火般速度顺序

代数式4x平方+3mn+9是完全平方式,则m= 高中阶段所有互滴试验现象及其方程式?最好有解析,一定要有方程式呀! The speaker raised his voice just to make himself ( ) Ato be heard B hearing C heard D to hear可以选A吗 he was expected to speak a little louder to make himself heard.最后个单词heard用的过去式 是因为这句话的时态是过去式还是因为表被动?被动不是应该有BE动词在里面?为什么没有? The speaker spoke up a bit so as to make himself heard more clearly.求此句中heard一词的解析此句中的heard该如何解析?make sb.do sth.不是要加动词原形吗?heard是怎么回事?还有我按字面上的翻译变成了演讲者把 make himself heard 请教一下make+oneself+( )的用法There was so much noise in the room that he couldn't make himself heardmake+oneself+形容词还是被动语态?这个搭配怎么用hear的被动语态是heared,而不是heard,请教一下make+ He raised his voice to make himself heard by all.求翻译 什么鸟冬天飞往南方 某同学拉着一个44kg的箱子在水平地面上匀速前进,已知箱子与地面的动摩擦因数u=0.5,拉力f与水平方向的夹g=10m/s^2,sin37度=0.6cos37度=0.8角为37度,求绳子的拉力F为多大 某同学拉着一个44kg的箱子在水平地面上匀速前进,已知箱子与地面的动摩擦因数缪=0.5,拉力f与水平的夹...某同学拉着一个44kg的箱子在水平地面上匀速前进,已知箱子与地面的动摩擦因数缪=0.5, (1/2)一同学拉着一个44kg的箱子在水平地面上匀速前进,箱子与地面动摩擦因数u=0.5拉力F与水平方向的夹...(1/2)一同学拉着一个44kg的箱子在水平地面上匀速前进,箱子与地面动摩擦因数u=0.5拉力F 怎么制作手工肥皂如题 小制作,那些肥皂纸,羽毛球,手电筒就免了只要好,不是抄的,我可以多给80悬赏分（我只剩80了~） 如何利用日常生活用品制造简易肥皂? 关于液体重力的计算如果给出液体的质量和高度以及底面积.根据重力公式G=mg可算出答案.m=ρv=ρsh.所以G=ρshg同样可以得出答案但是为什么有时候算出来的答案不一样呢? 初二重力计算问题 Excuse me,I'm hungry.Can you give me some food?这个句子对吗?如题 (2m+n-p)² I don t like the sweet rice dumplings give me those meat-------- Mum,can you give me another two cakes?同义句 Mu呢,can you give ___ ___ cakes ___me?Mum,can you give me another two cakes?同义句Mu呢,can you give ___ ___ cakes ___me?I don't know what I'm going to say at the meeting同义句I don't know ___ __ 哪些鸟飞到南方过冬 如何把纸粘到石灰墙上?主要是那种一摸手上还有粉粉的石灰墙.透明胶、胶水、图钉都没有用. 车子上的石灰怎么清理 视重力是什么?怎么算?当匀速上升时 可以把重力看作视重力么？ m-（2m-n-p）= （m+n)-( )=2m-p括号里应填什么 （m+n）?【m-（n+p）】=2m-p 可以填 - 或 + 应该填什么?为什么? Mum,I’m hungry.May I have（）biscuits now? 已知m,n,p满足/2m/+m=0 /n/=n p*/p/=1化简／n／－／m－p－1／＋／p＋n／－／2n＋1／注：／x／＝x的绝对值KKKKKKKKKKKKKKKKKKKKKKKKKKK Mum,I am hungry.Is supper r____ （m+n)-( )=2m-p 冬天飞回南方的有哪些鸟