题目

Ten minutes later，a bus ________ and everybody got on it. A . came up B . added up C . looked up D . put up 答案：A如图，在△ABC中，∠ACB=90°，DE是AB的垂直平分线，∠CAE︰∠EAB=4︰1．求∠B的度数．A.18。B.15。C.24。D.32。