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81的平方根是______;64的立方根是______.-数学
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如果(x-4)2=25,那么x的值是[]A.±1B.1C.±9D.9或-1-八年级数学
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— You look so young. Haven't you graduated from your university? — Yes. I_____in the English de
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的平方根是().-八年级数学
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(1)已知2x+1的平方根为±5,求5x+4的立方根。(2)已知x+y的算术平方根是3,(x-y)2=9,求xy的值.。-八年级数学
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Only then _____ how much damage had been caused. [ ]A. she realizedB. she had realizedC. had she rea
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If the weather had been better, we could have had a picnic. But it _____all day. [ ]A. rained B. rai
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—The food here is nice enough.— My friend _____ me a right place. [ ]A. introduces B. introduced C.
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When I talked with my grandma on the phone, she sounded weak, but by the time we _____ up, her voice
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Scientists have many theories about how the universe ____ into being. [ ]A. came B. was coming C. ha
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在实数范围内,数0,7,﹣81,(﹣5)2中,有平方根的有[]A.1个B.2个C.3个D.4个-八年级数学
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1681的平方根是______.-数学
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若一个奇数的立方根比3大,平方根比6小,且能被称5整除,则这个数一定是______.-数学
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— Why is your English so good, Amy? — Well, my uncle gives me a hand at home, for he _____in Austral
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— You look very tired _____ at all last night? — No, not really. I'm tired out now. [ ]A. Do yo
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单词拼写。 根据下列句子及所给汉语注释,在句子右边的横线上写出空缺处各单词的正确形式。(每空只写一词) 1. I'm very hungry— I _____(错过)luch. 2. Jac
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填空:(1)9的平方根是______,9的算术平方根是______;(2)6的平方根是______,6的算术平方根是______;(3)0的平方根是______,0的算术平方根是______.-数学
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— Have you read book called Waiting for Anya? — Who _____ it? [ ]A. writes B. has written C. wrote D
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9的平方根是[]A.3B.﹣3C.±3D.81-八年级数学
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平方根等于它本身的数是[]A.0B.1,0C.0,1,﹣1D.0,﹣1-八年级数学
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(﹣2)2的平方根是()。-八年级数学
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4的平方根是﹙﹚.-七年级数学
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计算:﹣=().-七年级数学
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﹣0.5的倒数是(),5的相反数是(),平方等于49的数是().-七年级数学
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52+122的平方根是()A.13B.13C.±l3D.±13-数学
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短文改错。 请按下列情况改错: 该行多一个词:把多余的词用斜线(/)划掉,在该行右边横线上写出并划掉。该行缺一个词:在缺词处加一个漏字符号(),在该行右边横线上写出该加的词-高三英语
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—Bob has gone to California.— Oh, can you tell me when he _____?[ ]A. has left B. left C. is leaving
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The water _____cool when I jumped into the pool for morning exercise. [ ]A. was felt B. is felt C. f
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I wasn't sure if he was really interested or if he _____polite. [ ]A. was just being B. will ju
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若一个正数的两个平方根分别为a+2与3a﹣1,则这个正数是()。-八年级数学
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9的平方根是[]A.3B.﹣3C.±3D.81-八年级数学
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9的平方根是()。-八年级数学
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9的平方根是[]A.3B.﹣3C.±3D.81-八年级数学
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平方根等于它本身的数是()。-八年级数学
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若a2=25,则a=()-七年级数学
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—That must have been a long trip.— Yeah. It _____ us a whole week to get there. [ ]A. takes B. has t
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— Have you known Mrs. Jackson for a long time? — Yes, since she _____the music club. [ ]A. has joine
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It's the second time that I _____in Shanghai! What great changes have taken place in Shanghai!
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短文改错。 One day in the restaurant where I worked, I am serving a table of four and each person had ord
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- Hi,Tom, why not attend my birthday held last week? - I am sorry, I had meant to, but I _____someth
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(-2)2的平方根是[]A.2B.±2C.-2D.-九年级数学
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一个正方形的边长如果增加2cm,面积则增加32cm2,则这个正方形的边长为[]A.6cmB.5cmC.8cmD.7cm-七年级数学
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的平方根是[]A.4B.±4C.2D.±2-七年级数学
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的平方根是[]A.9B.±9C.±3D.3-八年级数学
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数字25的平方根为()。-七年级数学
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一个数的平方根等于它的立方根,这个数是()A.0或1B.1C.0D.0和±1-数学
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— Jenny bought a new mobile phone the other day.— _____? That's her third one in just one month
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— Ann is in hospital. — Oh, really? I _____ know, I _____ go and visit her. [ ]A. didn't; am go
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— How long have you been at home? — Half an hour. My son_____ me home.[ ]A. would drive B. had drive
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一个数的平方为16,这个数是()-七年级数学
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是()的平方根-八年级数学
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