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过抛物线的焦点作一条斜率为k(k≠0)的弦,此弦满足:①弦长不超过8;②弦所在的直线与椭圆3x2 + 2y2 = 2相交,求k的取值范围.
A.y2=2x-1 B.y2=2x-2
C.y2=-2x+1 D.y2=-2x+2