如图,在西气东输的一项工程中,要从气站A往B,D,F这三座城市输送天然气.在铺设管道过程中需绕山铺设,B市在气站A的正西方向,且AB平行于CD平行于EF,若拐角角A是70度,拐角角E是140度,则角AcE是_
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![如图,在西气东输的一项工程中,要从气站A往B,D,F这三座城市输送天然气.在铺设管道过程中需绕山铺设,B市在气站A的正西方向,且AB平行于CD平行于EF,若拐角角A是70度,拐角角E是140度,则角AcE是_](/uploads/image/z/4495019-59-9.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E8%A5%BF%E6%B0%94%E4%B8%9C%E8%BE%93%E7%9A%84%E4%B8%80%E9%A1%B9%E5%B7%A5%E7%A8%8B%E4%B8%AD%2C%E8%A6%81%E4%BB%8E%E6%B0%94%E7%AB%99A%E5%BE%80B%2CD%2CF%E8%BF%99%E4%B8%89%E5%BA%A7%E5%9F%8E%E5%B8%82%E8%BE%93%E9%80%81%E5%A4%A9%E7%84%B6%E6%B0%94.%E5%9C%A8%E9%93%BA%E8%AE%BE%E7%AE%A1%E9%81%93%E8%BF%87%E7%A8%8B%E4%B8%AD%E9%9C%80%E7%BB%95%E5%B1%B1%E9%93%BA%E8%AE%BE%2CB%E5%B8%82%E5%9C%A8%E6%B0%94%E7%AB%99A%E7%9A%84%E6%AD%A3%E8%A5%BF%E6%96%B9%E5%90%91%2C%E4%B8%94AB%E5%B9%B3%E8%A1%8C%E4%BA%8ECD%E5%B9%B3%E8%A1%8C%E4%BA%8EEF%2C%E8%8B%A5%E6%8B%90%E8%A7%92%E8%A7%92A%E6%98%AF70%E5%BA%A6%2C%E6%8B%90%E8%A7%92%E8%A7%92E%E6%98%AF140%E5%BA%A6%2C%E5%88%99%E8%A7%92AcE%E6%98%AF%EF%BC%BF)
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