如图1,已知点a(a,0),b(0,b),且a、b满足 (a B 3)2=0,平行四边形abcd的边ad与y轴交于点e,且e为ad中点,双曲线 Template




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tomski如图1,已知点a(a,0),b(0,b),且a、b满足 (a b coloring