的值是( )。A.1
B.
C.
D.0
[单选题]计算的值是( )。A.184B.172C.162D.144
[单选题]计算的值是( )。A.184B.172C.162D.144
[单选题]计算的值是( )。A.184B.172C.162D.144
[单选题]计算的值是( )。A.11.65B.9.65C.11.75D.12.75
[单选题]计算的值是( )。A.1989B.1999C.2009D.1979
[单选题]计算的值是( )。A.184B.172C.162D.144
[单选题]计算的值是( )。A.184B.172C.162D.144
[单选题]计算的值是( )。A.184B.172C.162D.144
[单选题]已知且f(0)=0,则等于( ).A.2B.±2C.4D.±4
[单选题]已知在死亡时间均匀分布的假设下,(0.5q30+μ30.5)/5.25q50=( )。A.0.25517B.0.02257C.0.02517D.0.