皮皮学，免费搜题
登录
搜题
【简答题】
若钝角△ABC的三边a，b，c满足a＜b＜c，三内角的度数成等差数列，则 ac b 2 的取值范围是______．
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】空气以40m/s的速度流过长宽均为0.2m的薄板, =20°C, =120°C,实测空气掠过此板上下两表面时的摩擦力为0.075N,试计算此板与空气间的换热量( )(设此板仍作为无限宽的平板处理,不计宽度z方向的变化)。
A.
201.3W
B.
241.4W
C.
285.0W
D.
306.8W
【简答题】—I’m sorry I can ’t follow you. Would you mind saying that slowly? —______________ A.No, of course not. B.No, I wouldn ’t. C.I’ve n o idea. D.No, I would.
【单选题】More and more young Indian women are saying, “I don’t” rather than “I do” to child marriage, _____ their backs to a troublesome tradition that is still alive in the country’s poorest regions.
A.
to turn
B.
being turned
C.
turning
D.
having turned
相关题目：