中国的第一个火箭
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复分解反应的条件和特点是什么?
Then______across the bridge.中间填什么,并且要有解释
The Bridge Across Forever The Bridge Across Forever
什么是复分解反应和它的特点
一直不等式6x-2≥3x-4的最小整数解为方程2x-2a=3的解,求代数式a-1/a的值
复分解反应的类型共有哪些比如:酸+碱=盐+水
If you travel by ship across the Pacific,you cross the international date line翻译句子?
cross the out from under歌词里的Even when I cross the line,it's like a lie I've told a thousand times这句话怎么理解?
---- Is everything all right?---- Yes,we were very much afraid _________ our house when we wer---- Is everything all right?---- Yes,we were very much afraid _________ our house when we were away.A.for B.of C.in D.from为什么?
人教版初中阶段化学所有的复分解反应类型比如什么盐+强酸===盐+弱酸 还有什么 强金+什么什么的===弱金+……我们上课讲过的,我忘记了,
The Jordans的《White Room》 歌词
写三个不同类别的复分解反应的离子方程式
I NEVER LEFT THE WHITE ROOM怎么样
是不是不属于复分解反应类型的就不反应
What did he do yesterday.和what did he does yesterday.的区别是什么!
1、what did he ____yesterday afternoon?A、do B、did C、does2、Did you see any animals on the farm?_________A、Yes,I do B、Yes,I did C、No,I don't3、_____ was your trip yesterday?WonderfulA、What B、How C、When4、We visitsd a factory.It i
"I have been dying to see you .I am crary about you .I have been dying to see you .I am crary about you .
如果(x+1)(x的2次方-5ax+a)的乘积中不含x的2次方的项,则a为
what he is 和what does he do的区别
what does he do?与what is he 有什么区别好像都是询问职业的
What does he do?He is a policemen.修改病句
问几道数学题.谢拉!六分之一大于()大于七分之一四分之七小于()小于三分之七
x的m-1次方 乘以X的m+1次方(m>1)
AD是三角形ABC的高,MN是边BC的垂直平分线,三角形ABC的面积是150平方厘米,求三角形BDN的面积.(图自己画一下拉)
过去分词具体是啥?
过去分词是什么意思
已知平行四边形abcd面积是98cm2平行四边形abfe面积是平行四边形efcd的108倍,求abfe的面积
求平行四边形EFCD的面积是多少?
矛与盾怎么样
介词填空we usually look (at ) left ,then (/ ) right before we cross the road.不甚感激!
He was often late for work ,and that finally ___his job.P59三星笔试A cost B spent C took D lost,我选了D,为什么是A
如图,在直角梯形ABCD中,AD‖BC,∠B=90°,AB=8,tan∠CAD=4/3,CA=CD,E、F分别是线段AD、AC上的动点(点E与点A、D不重合),且∠FEC=∠ACB,设DE=x,CF=y.(1)求AC和AD的长;(2)求y与x的函数关系式;(3)当△EF