题目

What day is ______ in China? A. the Mothers’ Day      B. the Mother’s Day  C. Mother’s Day         D. Mothers’Day 答案:C10.解下列方程(1)y2+6y=1(用配方法)(2)2t2-6t+3=0(用公式法)(3)3(x-5)2=2(5-x)(4)(2x-1)2=(x+4)2.
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