氧化
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甲、乙两车同时从东、西两站开出,两小时后甲车到达两站中点,已知甲车与乙车所行路程的比是5:3,这时乙车离东站还有140千米.问东、西两站相距多少千米?
英语选择题-English has a large vocabulary-English has a large vocabulary -Yes.——more words and expressions and you will find it easier to read and communicate .A.KnowB.KnowingC.To knowD.Known希望有详解.
——English has large vocabulary,hasn’t it?—Yes.______ more words and expressions and you will find it easier to read and communicate.后面1半
什么化学品能腐蚀铝合金门窗
‘母亲的心’阅读文章1至4段;说说母亲冒着春寒去找螃蟹的原因有哪些
we can type words into the computer with a -----.Aprinter B mouse Cscreen Dkeyboardtype在句子里是什么意思
公有制经济,集体经济,个体经济、外资经济,私营经济,混合所有制经济;这些都是什么?能不能用通俗一点的语言来形容,不然我就直接去百科搜了.最好举些例子.
TESTFOUR 12.and I will hit youTESTFOUR 12.and I will hit youA)ifyou say that againB)ifyou say it againC)saythat againD)youwill say that again
you will tend to use hit-and-miss怎么解释
a jeep will hit you 从语法上来说
漂白粉失效.HCL会不会再和CACO3反应呢、?Ca(ClO)2+CO2+H2O=CaCO3+HClO(强酸制弱酸) 2Hclo=2Hcl+O2↑,那么HCL会不会再和CACO3反应呢、?
漂白粉和HCL反应原理?为什么产生了氯气?谁做的氧化剂?
lt is (a black ant )括号提问_______ _______ _lt is (a black ant )括号提问_______ _______ _______?
氯化氢和漂白粉的反应方程式?急会生成氯气的方程式?
Is that small ant black? (改为肯定句)
填空题:1.They like__new dolls'house.2.Study hard then you can llearn__things.
如图所示,已知菱形ABCD的对角线AC=16cm,BD=12cm,DE垂直BC于点E.求DE的长
如图,菱形ABCD的对角线交于O点,AC=16cm,BD=12cm,求菱形的高
Which one do you want The big one The small one中间应填 or and so 还是but
自己如何自制钾肥、氮肥?自己如何自制钾肥、氮肥?因为种萝卜要用到,用人粪尿制成的肥属于氮肥吗?还有用树叶制成的呢?明年种花还要用到呢?
蔼,熙,两个字广东话(粤语)怎么读?跟哪些字读音是一样的?
如图在菱形ABCD中,AC与BD相交于点O,如果AC=16cm,BC=10cm,DE⊥BC,垂足为点E,求BD DE的长
在菱形ABCD中,已知对角线AC,BD相交于O点,且AC=16cm,BD=12cm,DE⊥BC于点E,求DE的长
wouldn't take you so long to clean it up 翻译
请你仿照落花生的写法,采用借物喻人的手法,选一种事物写清事物寄寓的道理
My sister and I take turns at(cleaning)the house.为什么不用to clean或者clean?
The trip from Kitty‘s schoo to the World Park took about two hours by coach.对划线部分提问
对任意x,y有f(x+y)+f(x-y)=2f(x)*f(y)且f(0)>0求f(1)-f(-1)
已知2f(x)+f(1/x)=x,求y=f(x)的解析式.
that football match ticket ()me ¥that football match ticket ()me ¥100.A.gets B.spends C.takes D.costs
y=f(x)的图像如何变为y=2f(x)的图像?
用240cm长的铁丝围成一个长方体框架,长方体长、宽、高的比是4:3:5,它的长是多少?