A:you expect she has got
B:you expect has she got
C:do you expect she has got
D:do you expect has she got
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如图,在直角坐标系中,已知直线y=﹣ 12 x+4与y轴交于A点,与x轴交于B点,C点的坐标为(﹣2,0).
若函数fx=x1-2x-x2,则函数fx( )