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He named Tom.他叫Tom 对的么 How about ____(stay) at home this morning. 双曲线x²/a²-y²/b²=1(a>0,b>0)一条渐近线的倾斜角为π/3离心率为e,则（a²+e)/b的最小值为 点A(1,2)在反比例函数y=x分之k(k≠0)的图像上,则k=____.当Y=10时,x=____. 双曲线x²/a²-y²/b²=1的一条渐近线与直线3x-y+1=0平行,则此双曲线的离心率是 已知三角形ABC的面积为S,且向量AB*向量AC=1,则向量AB与AC的夹角的取值范围为?A.(π／6,π／4）B.（π／6,π／2）C.（π／3,π／2）D.（π／4,π／3） 已知Sn是非零数列an的前n项的和且Sn=2an-1,则S2012等于几n是下标 some of my students didn't speak english well ,so they had to use ________ to tell foreigner what they wanted to express when they were abroad.A.soundsB.languageC.gesturesD.voice选择哪个,并说明原因 Mary is fond of watching ______ TV while her sister is interested in listening to ______ radio.A、/, the B、the, / C、/, / D、the, the 若数列{an}的前n项和sn=3^n+a 当常数a满足什么条件式数列{an}是等比数列RT f（x）=x+x的3次方,若 x1+x2 一道数学题1.已知关于x.y的方程组x+2y=5m+3 3x-y=m+2 的解满足x+y=1,求m的值 Millie ,______ her mother ,______ to cook.用like 的 正确形式 英语.Millie would like to tell her mother about her school.（改为同义句）、The class meeting begins at three o'clock in the afternoon.（对划线部分提问：at three o'clock in the afternoon）We'll meet at the school gate tomorrow（ 845542653 我老婆给我发的啥意思呢不是.我老婆给我说乱打的. 我女朋友叫我老婆, 1.We have classes from monday at Friday 2.when it rains,I make a taxi to the library.改错 tom was ( ) that he couldn't understand such a simple sentence.a,so a stupid boy b,a so stupid boy c,so stupid a boy选哪个,为什么. 23 No one can help ___(like) Tom,he is such a lovely boy. 一条光线沿直线2x－y+2=0入射到直线x+y－5=0后反射,则反射光线所在的直线方程为? 三角形ABC中若sinA =2sinB AC=2 BC=? liu Tao is good at English.He speaks English very f___ 若x=1不是不等式2x+a大于1的解,则a的取值范围是: 说明文一般可分为哪两类? 说明文的论据分哪两大类 说明文分为______和_____两大类,在语言表达上,有的用_______,有的用_______,这类说明文也叫“_______”.2.常见的说明顺序有①______②_______③_______.3.常见的结构有①______②______③______ 在he speaks very good English,Spanish and Portuguese中为什么不用well? Tom is very clever ,but he is too lazy同义句改写 用加减法解方程组 1/5m-1/2n=2 2m+3n=4 y+1分之2=x+2分之3 2x+3y=5 解方程组:5m-4n=-7 m-2n=-2 Mike teaches very good English.就以上句子改错~只有一处错误~ his 空 English very good .he .often takes partn english .空处该填什么单词,开头是s的