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谁能给我解释一下高中数学的排列和组合谢谢~希望详细点 怎样把普通照片做成移轴照片最好是用软件 地球以上的铁轴为什么要做成倾斜的 以定格为题的文章.咋写?题目是《定格》.文体不限（除诗歌）.咋写?给点提示 一个圆柱和圆锥底面相等,这个圆柱的高是5分米,圆柱的底面积是（）平方厘米 贾宝玉和林黛玉的事迹、判词、代表语言、外貌描写写清楚点 英语翻译While my biggest weakness is that I am detailed orientated.I tend to over plan and get things done ahead of time. 隆中对共多少字 没有我的日子里,你要多多保重啊,怎么翻译成英文? 英语翻译一句话中,带有保重和再见的含义. 英语翻译,我要离开了,不知道下次见面会是什么时候.保重兄弟. 仿写上面的句子然后造一个句. 保重的英语怎么写啊?“保重”用英文咱们写,我知道是take 开尔.开尔怎么写啊?还有,“上帝会保佑你”怎么写? I ___to leave without __goodbye.该选什么?a think it is not polite,sayb thinks it is not polite,sayingc don't think it is polite,say d don't think it is polite,saying I ___to leave without __goodbyea think it is not polite,sayb thinks it is not polite,sayingc don't think it is polite,say d don't think it is polite,saying 用当······时······造一个句子快 We should leave without saying goodbye.=we shouldn't leave---------goodbye.用 if 改写． 你一定要保重.英文怎么写 英语翻译把“这一世 夫妻缘尽至此 我还好 你也保重”翻译成英文 英语短文 需要引用这句话 with whose VS~with which选哪个?The man,___daugher I worked ,is going to london for a visitor next SUN.A with whose B with which我知道选A呀但是我男朋友问我为什么选B，我怕我答得不够准确~没人了袄？ officers found Hassan with her head cut off.with her head 在句中充当什么成份? don't trust a lover who kisses you without closeing their eyes. 如何做这道仿造句子例：我就像彩色的指挥棒在空中飞舞......彩色的————————飞舞. 初二数学题求解（一元二次方程实数根）已知一元二次方程（m+1）x²+2mx+m-3=0有两个不相等的实数根,并且这两个根又不是互为相反数.（1）求m的取值范围（2）当m在取值范围内取最小偶数 遇到巨大响声应迅速张嘴捂耳,这是为什么 遇到巨大的声响时,要迅速张口,并紧捂双耳.哪里错了,这是关于用耳卫生的 英语翻译Man has his Head Chopped off with an Axe——Chechnan,Russian Conflict,Kind of like Chopping Wood except they use a head instead.Shocking Video laughing his head off throat's full of frogs tickled my ribs doubled up with laughter 是什么成语split my sides with laughterburst into laugtera laugh a minute都是什么成语意思啊 laughing his head offthroat's full of frogs tickled my ribs 请问m²n²/9+2mn^3/3+n^4 因式分解 关于醋酸溶液的电离平衡向醋酸溶液中加入冰醋酸,为什么溶液的导电能力反而增强了呢?冰醋酸不是不电离吗? （初中英语）—I'm tired of eating western fast food.Could you give me（）to eat?—Sure.What about jiaozi?A.nothing else newB.anything new elseC.everything new elseD.something else new 醋酸溶液的电离平衡方程式为?