下列说法是否正确?为什么?
(1)经过一点可以画两条直线;
(2)长方体的截面形状一定是长方形.
已知:如图,在△ABC中,AB=AC,以AC为直径的⊙O交AB于点M,交BC于点N,连接AN,过点C的切线交AB的延长线于点P.
(1)求证:∠BCP=∠BAN
(2)求证:AMMN=CBBP.
I often help mother__________ housework after school.