摘要: My parents like living . A.in the town B.in town C.on town D.at town
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下列等式变形正确的是 ( )
A、如果s =
ab,那么b =
B、如果
x = 6,那么x = 3
C、如果x - 3 = y - 3,那么x - y = 0 D、如果mx = my,那么x = y
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