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将抛物线y=3x2向上平移3个单位,再向左平移2个单位,那么得到的抛物线的解析式...
将抛物线y=3x2向上平移3个单位,再向左平移2个单位,那么得到的抛物线的解析式为( )
A.y=3(x+2)2+3
B.y=3(x-2)2+3
C.y=3(x+2)2-3
D.y=3(x-2)2-3
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