养成有礼貌的好习惯

一个等比数列的前三项之和为26,前六项之和是728,那么A1=?Q=? 一个等比数列的前3项和是26,前6项和是728,那么首项a1的值是什么 帮我解决这两道题,最好发一张图来, 如图, 求解题过程和答案,最好发图.给好评.俩道题都写下. 考研数学二,英语二分别要注意什么,和数学一,英语一有什么不同?考过数二英二的哥哥姐姐们给点建议 1.I (大写i)l_____fall in Canada.2.Today is Chen Jie's birthday.John is sending h____a card.3.It's May.What s_____is it in Beijing?4.Autumn is beautiful.I can watch the leaves f_____.(第一句的第一个字母是大写i,第二个字母是小写L) 考研中的 英语一 英语二 或是英语三 及数学一 数学二 数学三 是什么意思啊?哪个相对容易些?难度如何? Today is Chen Jie's birthday .John isToday is Chen Jie's birthday .John is sending h（ ） a card.填下面括号 Today is my birthday.假如昨天是你的生日,你的朋友给你带什么.你们在生日聚会里做了什么?英语写作请写小学知识,我不懂这么深 如图,一足够长质量为M的木板静止在光滑的水平面上,有一质量为m的木块,以初速度为v0滑上木板,已知木板与木块间的动摩擦因素为μ,木块在木板上滑行一段位移后,相对静止,此时速度为v,(1)相 谁会写英语日记：today is my birthday求求大家了,救救我吧,明天就得交了! 照片中的第九题怎么解?为啥是B啊 如图, 考研英语一和英语二 哪个容易 侧重点在哪里 考研时,英语一与英语二,数学一与数学二是考题难度不同,还是出题方向不同,还是随机的A,B卷关系? Angel is twelve years old. It is her t---- birthday today. Angel is twelve years old.It is her birthday today Tom is nine years old.Today is his_____birthday如题 he is_____(five)years old.today is birthday. 如图...一元一次不等式解第9题 图中第12题求解! 如图,12题 图中的第12题,求解! 用括号中所给代词的适当形式填空Today is____(she)birthday. Today is Sunday,It’s Kelly’s birthday,too.She is having a big birthday party in her house.She Today is November 8th .It's Mary's birthday.She is twelve ( )1 How old is Mary today? ______. A. 12 Today is Lily's 13th birthday.She has birthdayparty at home and some of her friends come to her hoShe has birthday party at home and some of her friends come to her home to celebrite it.They bring d____ birthday looks b_____.People always put the lan 关于微笑待人的名言锦句 关于微笑的名人名言,诗句 用微笑面对生活的句子、名言、文章 微笑面对生活的名言诗句多的?诗句名言