题目

My father ______ newspapers after dinner every day instead of watching TV. A. reads     B. read       C. will read        D. is reading 答案:A 在平面直角坐标系中,如果抛物线y=2x2+1不动,而把x轴、y轴分别向上、向右平移2个单位,那么在新坐标系下抛物线的解析式是(  )A.y=2(x-2)2+3B.y=2(x-2)2-1C.y=2(x+2)2-1D.y=2(x+2)2+3
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