.选择题除外其他都要算式1.三个质数a,b,c满足a+b=c,且a<b,则a=(),b=()2.半圆形花坛的半径用r表示,则它的周长是().A.r(π+2) B.2r(π+1) C.2(π+r)3.一个数除以a,商4余1,这个数是().A.4a+
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![.选择题除外其他都要算式1.三个质数a,b,c满足a+b=c,且a<b,则a=(),b=()2.半圆形花坛的半径用r表示,则它的周长是().A.r(π+2) B.2r(π+1) C.2(π+r)3.一个数除以a,商4余1,这个数是().A.4a+](/uploads/image/z/2675424-48-4.jpg?t=.%E9%80%89%E6%8B%A9%E9%A2%98%E9%99%A4%E5%A4%96%E5%85%B6%E4%BB%96%E9%83%BD%E8%A6%81%E7%AE%97%E5%BC%8F1.%E4%B8%89%E4%B8%AA%E8%B4%A8%E6%95%B0a%2Cb%2Cc%E6%BB%A1%E8%B6%B3a%2Bb%3Dc%2C%E4%B8%94a%EF%BC%9Cb%2C%E5%88%99a%3D%EF%BC%88%EF%BC%89%2Cb%3D%EF%BC%88%EF%BC%892.%E5%8D%8A%E5%9C%86%E5%BD%A2%E8%8A%B1%E5%9D%9B%E7%9A%84%E5%8D%8A%E5%BE%84%E7%94%A8r%E8%A1%A8%E7%A4%BA%2C%E5%88%99%E5%AE%83%E7%9A%84%E5%91%A8%E9%95%BF%E6%98%AF%EF%BC%88%EF%BC%89.A.r%EF%BC%88%CF%80%2B2%EF%BC%89+B.2r%EF%BC%88%CF%80%2B1%EF%BC%89+C.2%EF%BC%88%CF%80%2Br%EF%BC%893.%E4%B8%80%E4%B8%AA%E6%95%B0%E9%99%A4%E4%BB%A5a%2C%E5%95%864%E4%BD%991%2C%E8%BF%99%E4%B8%AA%E6%95%B0%E6%98%AF%EF%BC%88%EF%BC%89.A.4a%2B)
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