-Mum, where is my lunch pack?-Just where it ________.[ ]A．has beenB．had beenC．wasD．be-高三英语

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• The other day,as she waited for the medical report from the doctor,her nervousness _________.[ ]A. h
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• 短文改错。 Last night when Steven and I was having a walk in the street, we suddenly heard a painful cry
• 下列说法：①2是4的一个平方根；②16的平方根是4；③-36的平方根是±6；④-8是64的一个平方根．其中正确的个数是（）A．1B．2C．3D．4-数学
• 若x2=16，那么5-x的算术平方根是（）A．±1B．±4C．1或9D．1或3-数学
• Had it been possible I would have gone to the movies but I ________ too busy.[ ]A．had beenB．amC．wasD
• 如果一个数的平方根是±3，那么这个数是______．-数学
• 已知：x-2的平方根是±2，2x+y+7的立方根是3，求x2+y2的算术平方根．-数学
• 求适合下列各式中的x的值：（1）（x+1）2-144=0；（2）2（2x-1）3=54．-数学
• -Did you see who the driver was?-No,so quickly _________that I couldn't get a good look at his
• Present at the meeting yesterday ___________the expert on DNA. [ ]A. are B.isC. wasD. were-高二英语
• 短文改错。 Last summer I learnt to ride a bicycle. At first,I was unable to control it's direction.
• It is several years since he ______ ill and his illness _______ great damage to his health.[ ]A. fel
• Edward, you play so well. But I _____you played the piano. [ ]A. didn't knowB. hadn't know
• -I'm sorry, but there's no smoking in this section on the train.-Oh, I ________ that, and
• 短文改错。 此题要求改正所给短文中的错误。对标有题号的每一行做出判断： 如有错误(每行只有一个错误)，则按下列情况改正：此行多一个词：把多余的词用斜线(＼)划掉，在该行右边-高三英语
• 单句改错。 每句中有一处错误。错误涉及一个单词的增加、删除或修改。 增加：在缺词处加一个漏字符号（^）。并在其下面写出该加的词。 删除：把多余的词用斜线（＼）划掉。 修改：在-高一英语
• 已知x=a+bM是M的立方根，y=3b-6是x的相反数，且M=3a-7，那么x的平方根是______．-数学
• 8l的平方根为______．-数学
• 9的平方根是（）A．±9B．9C．±3D．3-数学
• 25的平方根是（）A．±5B．5C．-5D．±25-数学
• 下列叙述正确的是[]A．正数的平方根不可能是负数B．无限小数是无理数C．实数和数轴上的数一一对应D．带根号的数是无理数-七年级数学
• So difficult _____ it to live in an English-speaking country that I determined to learn English well
• She _____ her hairstyle in her hometown before she came to Chongqing for a better job. [ ]A. would c
• 短文改错。英语课上,老师要求同桌同学相互修改作文。假设以下小作文为你同桌所写，请你对其进行修改。文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或-高三英语
• |-9|的平方根为；(-5)2=；327的立方根是．-数学
• It won’t be long before we ____ each other again.[ ]A. will meetB. met C. meetD. would meet -高二英语
• 单词拼写。根据下列句子所给汉语意思,写出空缺处各单词的正确形式。1.The idea ______(突然想到) to him in a dream. 2.Mike didn't have m
• — Have you known Dr Jackson for a long time? — Yes, since she _____the Chinese Society. [ ]A. has jo
• Mother asked John _____ with his toy car. [ ]A. what the matter was B. what was the matterC. what th
• 若，则m的取值范围为（）。-八年级数学
• 256的平方根是______．-数学
• I don't believe you've already finished reading the book. I ___ it to you this morning. [
• I failed in the final examination last term and only then _____ the importance of studies.[ ]A. I re
• 4的平方根是（）A．2B．-2C．±2D．±4-数学
• 9的平方根是（）A．3B．±3C．3D．±3-数学
• 16的平方根是（）A．2B．±2C．4D．±4-数学
• 8的平方根是______，-8的立方根是______．-数学
• 一个数的平方根等于它本身，这个数是()；一个数的立方根等于它本身，这个数是()；一个数的算术平方根等于它本身，这个数是()-八年级数学
• — Has Linda come back from Canada? — Yes. She ______ there for eight years.[ ]A. has stayed B. stays
• 短文改错。 此题要求改正所给短文中的错误，对标有题号的每一行做出判断，如无错误，在相应位置上画一个勾(√)；如有错误，（每行只有一个错误）则按下列情况改正： 此行多一个词-高三英语
• 4的平方根是（）A．2B．±2C．±2D．-2-数学
• The teacher asked the girl again, raising his voice a bit, but still _____ no answer. A. receiving B
• Beijing ____ its best air quality in the first six months of last year. [ ]A. saw B. sees C. had see
• It was not until the subprime loan crisis (次贷危机) ____ great damage to the American financial system
• 如果一个正数的平方根是a+3和2a-15，则这个数为______．-数学
• （1）求下列各式中的x，①（x-1）3=-8；②（x+1）2=25；（2）已知某数的平方根是a+3和2a-15，b的立方根是2，求b-a的平方根。-八年级数学
• 平方根和立方根都是本身的数是（）。-七年级数学