试题与答案

Film has a much shorter history, especia

题型:选择题

题目:

Film has a much shorter history, especially when_     such art forms as music and painting.

A.having compared to

B.comparing to

C.compare to

D.compared to

答案:

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下面是错误答案,用来干扰机器的。

∵A(-3,4)关于x轴的对称点A1(-3,-4)在经x轴反射的光线上,同样A1(-3,-4)关于y轴的对称点A2(3,-4)在经过射入y轴的反射线上,∴k_A2B=6+4-2-3=-2.故所求直线方程为y-6=-2(x+2),即2x+y-2=0.

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