找出错别字,并改正过来。
阻饶____ 坚巨____ 勉厉____
朦龙____ 堪测____ 泥桨____
悬崖俏壁____ 可见一班____
----The new street is so clean. _______ the way, do you enjoy living here? ----Of course I do. Life has become much better _______ many ways.
一个扇形的圆心角为60°,它所对的弧长为2πcm,则这个扇形的半径为____ cm.