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Missing in Thailand, a comedy about two rival Chinese businessmen and a simple-minded pancake maker,
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两个最简二次根式ab与cb相加得65,则a+b+c=______.-数学
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二次根式化简结果为(▲)A.B.C.D.-九年级数学
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---- What's happening in the new area?---- New houses__________ recently over there.A.are buil
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使有意义的x的取值范围是▲.-九年级数学
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在函数中,自变量x的取值范围是()A.x≥5B.x≤5C.x>5D.x<5-八年级数学
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计算--的结果是().A.1.B.-1.C.-.D.--八年级数学
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化为最简的结果是()A.B.C.D.-八年级数学
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– Why you didn’t handed in your exercise paper?–Sorry, but I ____ that it should be turned in today.
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函数中自变量x的取值范围是▲.-八年级数学
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已知,为实数,且满足,那么=▲.-九年级数学
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计算:=▲.-九年级数学
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计算-九年级数学
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-九年级数学
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若,则的值为A.3B.-7C.7D.-3-八年级数学
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下列运算正确的是A.B.C.D.-九年级数学
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计算:-八年级数学
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为任何实数,则的最小值是__________。-八年级数学
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(1)阅读理解先观察和计算,并用“>”、“<”、“≥”、“≤”、“=”填空:4+92,4+42,2+32。请猜想:当则。如∵展开∴6+5。请你给出猜想的一个相仿的说明过程。(2)知识应用①如图⊙O中,
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下列计算正确的是()A.2+3=5B.33-3=2C.22+2=32D.4-2=2-数学
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计算:=-八年级数学
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Hearing the news about Neil Armstrong's death,____.A.my heart missed a beatB.my mind went empty
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已知,则x等于()A.4B.±2C.2D.±4-九年级数学
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当满足*时,有意义.-九年级数学
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计算:-九年级数学
题目简介
化简计算:小题1:小题2:-八年级数学
题目详情
小题1:
小题2:
答案
小题1:286
小题2:
(1)
解:原式=
(2)
原式=