查人人中国名人网2016世界拳王争霸赛:2004年希望杯初二初赛的几道题目有谁能讲解一下
来源：百度文库 编辑：查人人中国名人网 时间：2024/10/05 06:09:38
选择题
6.Given in the △ABC,a,b,c are three sides of the triangle,and 3/a=2/b+1/c,then ∠A is
A.acute angle
B.right angle
C.obtuse angle
D.acute angle or obtuse angle
6.Given in the △ABC,a,b,c are three sides of the triangle,and 3/a=2/b+1/c,then ∠A is
A.acute angle
B.right angle
C.obtuse angle
D.acute angle or obtuse angle
D.acute angle or obtuse angle