设向量OA=a,向量OB=b,向量OC=c,当c=xa+yb(x+y=1)(x,y属于R)时,点C在.A.线段AB上B.直线AB上C.直线AB上,但除去A点D.直线AB上,但除去B点
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![设向量OA=a,向量OB=b,向量OC=c,当c=xa+yb(x+y=1)(x,y属于R)时,点C在.A.线段AB上B.直线AB上C.直线AB上,但除去A点D.直线AB上,但除去B点](/uploads/image/z/10093982-14-2.jpg?t=%E8%AE%BE%E5%90%91%E9%87%8FOA%3Da%2C%E5%90%91%E9%87%8FOB%3Db%2C%E5%90%91%E9%87%8FOC%3Dc%2C%E5%BD%93c%3Dxa%2Byb%28x%2By%3D1%29%28x%2Cy%E5%B1%9E%E4%BA%8ER%EF%BC%89%E6%97%B6%2C%E7%82%B9C%E5%9C%A8.A.%E7%BA%BF%E6%AE%B5AB%E4%B8%8AB.%E7%9B%B4%E7%BA%BFAB%E4%B8%8AC.%E7%9B%B4%E7%BA%BFAB%E4%B8%8A%2C%E4%BD%86%E9%99%A4%E5%8E%BBA%E7%82%B9D.%E7%9B%B4%E7%BA%BFAB%E4%B8%8A%2C%E4%BD%86%E9%99%A4%E5%8E%BBB%E7%82%B9)
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