A.a＜0或a＞2                B.a=0或a=2           C.0＜a＜2              D.0≤a≤2

A.-x+2y-4=0                                 B.x+2y-4=0

C.-x+2y+4=0                                 D.x+2y+4=0

①两条直线互相平行的充要条件是它们的斜率相等而截距不等；②方程（2x+y-3)+λ(x-y+2)=0（λ为常数）表示经过两直线2x+y-3=0与x-y+2=0交点的所有直线；③过点M（x₀，y₀)，且与直线ax+by+c=0(ab≠0)平行的直线方程是a(x-x₀)+b(y-y₀)=0；④两条平行直线3x-2y+5=0与?6x-4y+8=0间的距离是d=.

A.0                    B.1                  C.2                    D.3