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一、选择题(本大题共12小题,每小题5分,共60分;在每小题给出的4个选项中,只有一项是符合题目要求的)1.已知α为第三象限的角,则2α所在的象限是()(A)第一或第二象限(B)第二或第三象限(C)第一或第三象限(D)第二或第四象限2.已知过点A(-2,m)和B(m,4)的直线与直线2x+y-1=0平行,则m
First, the multiple-choice questions (the title of a total of 12 small questions, each question 5 points, a total of 60 points; in each of the four questions given in the four options, only one is in line with the requirements of the title) 1. Known α is The angle of the third quadrant is then the quadrant where 2α is () (A) the first or second quadrant (B) the second or third quadrant (C) the first or third quadrant (D) the second or fourth quadrant 2. It is known that the straight lines of points A(-2,m) and B(m,4) are parallel to the straight line 2x+y-1=0, then m