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的值为( )
碘是紫黑色晶体,可以溶解在汽油中,形成紫红色溶液.
— Listen! Somebody is ___________ at the door.
— Don't answer the door! Mom doesn't let us do it while she is out.