A:②④⑦⑧③⑥⑤①
B:⑦③⑧⑥①④②⑤
C:⑥⑦③⑤①④②⑧
D:⑥⑧②④⑤⑦③①
函数f(x)=x2-2x+1在点T(1,0)处的切线方程是( )
—I'd love to, but my mother is sick. I _______ look after her at home.