A.0.1m B.0.2m C.0.4m D.0,5m
A.>0.5 B.為0.3~0.5 C.為0.2~0.4 D.為0.2~0.3
A.S0=0.2358,S1=15.2375,S2=5.2375 B.S0=0.0028,S1=1.2372,S2=2.0083 C.S0=0.0037,S1=1.0237,S2=1.2517 D.S0=0.1347,S1=2.0705,S2=1.5127