A.0.0002h-1B.0.00025h-1C.0.0003h-1D.0.00035h-1
A.形狀參數(shù)B.尺度參數(shù)θC.時間參數(shù)tD.位置參數(shù)γ
A.2,4B.4,2C.3,2D.0,0