①已知(a-3的绝对值)+b+(+4)的绝对值)+(a-b+2c的绝对值)=0,计算abc的值.②【2013分之1-1】×【2012分之1-1】×【2011分之1-1】.×【1001分之1-1】×【1000分之1-1】③(-5)×10×(-2)=④3×105-(-5)×105+(-1)×105=
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![①已知(a-3的绝对值)+b+(+4)的绝对值)+(a-b+2c的绝对值)=0,计算abc的值.②【2013分之1-1】×【2012分之1-1】×【2011分之1-1】.×【1001分之1-1】×【1000分之1-1】③(-5)×10×(-2)=④3×105-(-5)×105+(-1)×105=](/uploads/image/z/1785231-63-1.jpg?t=%E2%91%A0%E5%B7%B2%E7%9F%A5%EF%BC%88a-3%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%EF%BC%89%2Bb%2B%28%2B4%29%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%29%2B%EF%BC%88a-b%2B2c%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%EF%BC%89%3D0%2C%E8%AE%A1%E7%AE%97abc%E7%9A%84%E5%80%BC.%E2%91%A1%E3%80%902013%E5%88%86%E4%B9%8B1-1%E3%80%91%C3%97%E3%80%902012%E5%88%86%E4%B9%8B1-1%E3%80%91%C3%97%E3%80%902011%E5%88%86%E4%B9%8B1-1%E3%80%91.%C3%97%E3%80%901001%E5%88%86%E4%B9%8B1-1%E3%80%91%C3%97%E3%80%901000%E5%88%86%E4%B9%8B1-1%E3%80%91%E2%91%A2%28-5%29%C3%9710%C3%97%28-2%29%3D%E2%91%A33%C3%97105-%28-5%29%C3%97105%2B%28-1%29%C3%97105%3D)
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