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初二数学经典题已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少?圆周率是如何计算导出的?已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少?圆周率是如何计算 圆周率是如何计算导出的?已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少?圆周率是如何计算导出的?已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少? 1+1+1+1+1+.+999999=( )已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少?圆周率是如1+1=( ) 1圆周率是如何计算导出的?2已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少? 圆周率是如何计算导出的?已知两角之比为7：3,它们的差为72度,求这两个角的度数 圆周率是如何计算导出的? 已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少? 圆周率是如何计算导出的? 已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少? 已知两角比为7：3,他们的差为72度,求这两个角的度数各是多少?圆周率是如何计算导出的? 已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少?圆周率是如何计算导出需要用字母来表示 已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少?圆周率是如何计算导出的?. .已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少?圆周率是如何计算导 丰富化还是已知两角之比为7：3,它们的差为72度,求这两个角的度数各是多少?圆周率是如何计算导出 圆周率是如何计算导出的?已知两角之比为7：3,它们的差为72度,求这两个角的度数各是 文海拾贝（第二题）的第四小题 快,我有急用 求20个一（)不（）式的成语比如：一尘不染、一成不变之类的各位能写几个写几个,不到20也行 例子：真个人群乱的不可开交、1荷花美得____.2今晚的月亮圆得____.3大海广阔的____.4,今年春节,我过得_____.《示儿》是南宋诗人陆游的绝笔,以遗嘱的口吻告诉孩子_(自己的话语）而“__",叮嘱孩 2008年小学六年级语文寒假作业的答案 那道是阅读题,关于美人蕉的.是天津科学技术出版社出的! 有道英语题目,我是六年级的.希望这个问题可以尽快得到答复!谢谢!你是好心人!survive的名词形式是什么? It's eight o'clock.The students must have lessons now.(相同意思,每格一词)It's time ＿＿＿students＿＿＿have lessons. 大家都知道高中英语阅读最后有一道7选5,5个空,7个备选答案（有两个是多余的）,每空两分共10分,那么如果随机从7个备选答案中选5个填入5个空中,得分的数学期望是多少最好有过程,我怎么算 请教好心人一道英语题!He may win the competition,_____ he is likely to get into the national team.A,in which case B,in that case 答案是A请详细解释下A的定语从句用法,一涉及到介词的定语从句就不太明白!我感 一.将下列句子改为否定句.1.Jack has a new telescope and a mask.2.They do their homework at home.3.Mary does well in Chinese.4.Lily studies Japanese at school.5.All the children like piaying football.6.Jack is always first to come to school. 1.Five dimes and two nickels( )all the coin Marry had with her.A.were B.is C.ARE D.was2.Never before in the history of this country has anyone seen geater prosperity in the securities markets( )A.than1993 B.as1993 C.than in 1993 D.as in 1993 这是详细内容1.Linda is going to see her grandmother （next month）对括号部分提问2.The Greens uaually take vacation (in Europe)对括号部分提问3.We're staying here (for a month).对括号部分提问4.He will take Mark to the park. 急!英语题:!好心人帮我When I was a child , I lived in a small house with almost no___A.floor B.yard C.room D.playground选什么?为什么?说清谢谢 Read and answer the question .Allan ' s school is in paris .yesterday was a holiday and there was no school .the day before yesterday was wednesday .on wednesday he had school .Allan had a science lesson at 8:40 .it was the first lesson .after scienc 句子：At age nineteen,she became the first woman in 1926 to swim across the English Channel.这篇文章要强调的是she是第一个穿过English Channel的女人,原句的意思有歧义,说成是她是1926年里第一个女人.如果要改1926 1.Please be _______.Your question is too general.A.limitedB.narrowC.specificD.thorough2.He finally _____ in reaching the top of the mountain.A.achievedB.succeededC.enabledD.managed3.Every time I ____ there,I’ll buy something nice.A.wentB.will goC.h 32.This is _____ bedroom.They like it very much.A.Anne and Jane.B.Anne"s and Jane"s C .Anne"s And Jane D.Anne" and Jane"33.I"m new here.You can call ____ TonyA.him B.his C.me D.I36.There are two __________ in the gardenA.apples trees B.apple tree C.a 几道英语题请好心人帮忙Exercises（练习）:1) Your father is a doctor. (I know)2) What’s he going to do? (He doesn’t know)3) Should she go to the party? ( She can’t decide)4) When did he last see his old friends? ( He can’t re