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            • 1.
              若直线\(l_{1}\):\(2x+(m+1)y+4=0\)与直线\(l_{2}\):\(mx+3y-2=0\)平行,则\(m\)的值为\((\)  \()\)
              A.\(-2\)
              B.\(-3\)
              C.\(2\)或\(-3\)
              D.\(-2\)或\(-3\)
            • 2.

              若\({l}_{1}:x+\left(m+1\right)y+\left(m-2\right)=0,{l}_{2}:mx+2y+8=0 \)的图像是两条平行直线,则\(m\)的值是\((\)    \()\)

              A.\(m=1\)或\(m=-2\)   
              B.\(m=1\)           
              C.\(m=-2\)       
              D.\(m\)的值不存在
            • 3.
              已知直线\(l_{1}\):\(x+2ay-1=0\),与\(l_{2}\):\((2a-1)x-ay-1=0\)平行,则\(a\)的值是\((\)  \()\)
              A.\(0\)或\(1\)
              B.\(1\)或\( \dfrac {1}{4}\)
              C.\(0\)或\( \dfrac {1}{4}\)
              D.\( \dfrac {1}{4}\)
            • 4.
              直线\(l_{1}\):\((3+a)x+4y=5-3a\)和直线\(l_{2}\):\(2x+(5+a)y=8\)平行,则\(a=(\)  \()\)
              A.\(-7\)或\(-1\)
              B.\(-7\)
              C.\(7\)或\(1\)
              D.\(-1\)
            • 5.

              已知直线\(l_{1}\):\((m+1)x+2y+2m-2=0\),\(l_{2}\):\(2x+(m-2)y+2=0\),若\(l_{1}/\!/l_{2}\),则\(m=\)

              A.\(-2\)
              B.\(±3\)
              C.\(3\)
              D.\(-3\)
            • 6.

              已知直线\({{l}_{1}}:2x+2ay-5=0,{{l}_{2}}:(3a+2)x-ay-2=0\) ,若\(l_{1}/\!/l\),则\(a\)的值为\((\)   \()\)

              A.\(-1\)
              B.\(0\)或\(1\)
              C.\(0\)
              D.\(0\)或\(-1\)
            • 7.

              经过点\(A(1,2)\)且与直线\(2x-3y+5=0\)平行的直线方程为(    )

              A.\(3x+2y+4=0\)
              B.\(3x+2y-7=0\)
              C.\(2x-3y-7=0\)
              D.\(2x-3y+4=0\)
            • 8.

              设集合\(A=\left\{\begin{matrix}\left( x,y \right)\left. 2x+y=1,x,y∈R \right. \end{matrix}\right\}\),\(B=\left\{\begin{matrix}(x,y)\left. a^{2}x+2y=a,x,y∈R \right. \end{matrix}\right\}\),如果\(A∩B=\),则\(a\)的值为

              A.\(- \dfrac{3}{2}\)
              B.\( \dfrac{3}{2}\)
              C.\(-2\)
              D.\(2\)
            • 9.

              若直线\({{l}_{1}}:x+\left( m+1 \right)y+\left( m-2 \right)=0\)与直线\({{l}_{2}}:mx+2y+8=0\)平行,则\(m=\)      

            • 10.
              已知\(A(-1,a)\)、\(B(a,8)\)两点的直线与直线\(2x-y+1=0\)平行,则\(a\)的值为\((\)  \()\)
              A.\(-10\)
              B.\(17\)
              C.\(5\)
              D.\(2\)
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