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苯扎氯铵和苯扎溴铵怎么鉴别,区分 新洁尔灭（苯扎溴铵）上海的怎么样? 求极限 x-0 (arctanx-x)/(2x^3)=请把计算过程和原因讲明!谢谢 竹石这首诗表达诗人志向的诗句是什么? x→∞,求(arctanx+sinx)/2x的极限,limx→∞,(arctanx+sinx)/2x的极限是什么, 抒发了诗人_________________的志向啊? 竹石中作者直接抒发要做一个正直高尚的人的坚定志向的诗句 It's I,not you,who ______ wrong.A.is B.am C.are 应该选择哪一个? It is not I who ______ wrong.A.is B.are C.am D.has been ha,you are wrong____.the_____two eyes are all right.so that is not your horse,it is mine.补全对话 Apologizing does not always mean you are wrong & the other person is right.It just means you value 《竹石》是一首题画诗,作者郑燮,号（）,（）代著名书画家、诗人.本诗第一句用一个（）字充分表现了竹子的（）性格；第二句写出了竹子的生命力（）；后两句中“千磨万击”“东西南北 竹石是一首寓意深刻的题画诗,作者郑燮,号（）,（）代著名书画家.诗人.本诗第一句用一个（）字充分表达了竹子的（）性格；第二句写出了竹子的生命力（）；后两句中“千磨万击”“东 《竹石》是一首题画诗,作者（ ）,号（ ）,（ ）代著名书画家、诗人,（ ）之一.快,我有急用 （2x^2+3）/（x^2+1）的极限 求极限lim(1+2/x)^2x+3x→正无穷 已知函数f(x)满足f(x+y)+f(x-y)=2f(x)*f(y)(x,y属于R),且f(0)不等于0,试证f(x)是偶函数 never give up 英译汉Nothing is difficult if you put your heart on it.Nothing is easy if you don’t try your best.We often hear people say,“Never give up.” This can be encouraging words and words of determination.A person who believes in them 六年级民风民俗作文 if you don't give up,I will not give up either的意思 六年级的作文民风民俗谁有啊急啊! 一句话(英译汉）：what you are,i was;what i am,you will be如题,请翻译：what you are,i was;what i am,you will be 英译汉；1.who can haip me?2.i will halp you.3.all the balloons are flying4.the orang are falling. 英译汉 在线翻译there are none so deaf as those who will not hear 8、回归分析要求明确原因变量和结果变量.正确 错误 回归分析因变量有多个指标怎么办运用SPSS软件对原始数据进行回归分析,通常因变量和自变量都有若干指标测评,对这些数据,特别是因变量的指标,如何进行回归分析?因变量的值该如何确定? 竹石有哪几句诗 我要做的是多元回归分析,请问变量之间的相关系数这么大可以么? 电源由两节新的干电池串联组成.电阻R=20Ω,灯L标有“6V 3.6W"字样,闭合S后,串联电源由两节新的干电池串联组成．电阻R=20Ω,灯L标有“6V 3．6W"字样,闭合S后,串联电路中的电流为 A,R两端的电压为_ i'm going to play basketball after school.what about you?-i'm going to play basketball after school.what about you?-_________.选项有：A yes,basketball is popular.B are you?it's so hot.C i like basketball very much.D so am i 应该选谁?但是标 what about play basketball?是哪里错了 What about _(play) baskeball this aftennoonquickly!~