单项选择题
A.f(19)>f(24)>f(-25)B.f(24)>f(19)>f(-25)C.f(-25)>f(19)>f(24)D.f(-25)>f(24)>f(19)
A.1/6B.1/3C.1/2D.2/3
A.cmB.cmC.3cmD.cm