A:已是悬崖百丈冰
B:飞雪迎春到
C:风雨送春归
D:犹有花枝俏
Tom always does some housework to get____ ____from his parents.
如图,PA、PB是⊙O的切线,切点是A、B,已知∠P=60°,0A=3,那么∠AOB所对弧的长度为( ).
They'll visit that museum____ ____.