中視聶小倩線上看 , 聶小倩線上看第二集 , 聶小倩 中視 , 聶小倩電視劇 , 聶小倩

1.若(a,b)在第二象限，(c,d)在第四象限，則|a-b|+|c-d|=?
(A)a-b+c-d (B)a-b-c+d (C)-a+b+c-d (D)-a+b-c+d
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2.若a>0,b
(A)一 (B)二 (C)三 (D)四
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3.已知ax+by=0且ab
(A)圖形必通過原點 (B)圖形只通過一、三象限 (C)圖形只通過二、四象限 (D)圖形必通過(b,-a)
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4.直線L1:x-2y-4=0，L2:2x+y+6=0與x軸所圍成的三角形面積為多少平方單位？
(A)7/5 (B)42/5(C)49/5(D)63/5
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5.坐標平面上A(2,0)、B(k,0)、C(5,6)，已知三角形ABC為等腰三角形，且k>0，則線段Bc的直線方程式為下列何者？
(A)y=2x-4 (B)y=3x+6 (C)2x+y=16 (D)4x-5y-30=0
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6.若a>0,b
(A)一 (B)二 (C)三 (D)四
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7.若a>0,ab
(A)一 (B)二 (C)三 (D)四

拜託！！很急！希望有人回答！！！

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