题干
--- Do we have to finish our homework this afternoon?
--- Yes, you .
A：must
B：can
C：may
D：need
答案(点此获取答案解析）
A
--- Do we have to finish our homework this afternoon?
--- Yes, you .
A：must
B：can
C：may
D：need
在点
处的切线方程为（ ）