1.证明:
显然 a-5b
已知a、b为整数,且n=10a+b,如果17丨a-5b,请你证明:17丨n
已知a、b为整数,且n=10a+b,如果17丨a-5b,请你证明:17丨n
数学人气:976 ℃时间:2020-05-23 03:52:05
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