A.11.65
B.9.65
C.11.75
D.12.75
[单选题]计算的值是( )。A.184B.172C.162D.144
[单选题]计算的值是( )。A.1989B.1999C.2009D.1979
[单选题]计算的值是( )。A.1B.C.D.0
[单选题]分数中最大的一个是( )。A.B.C.D.
[单选题]已知那么的值为( )。A.1B.0C.-1D.2
[单选题]如果,,…,是正整数,且,=250,则的最小值为( )。A.29B.30C.31D.32
[单选题]已知=8,=-20,则(a-b)a3+(b-a)b3=( )。A.96B.-96C.2096D.12096
[单选题]计算和的估计值分别为( )。A.1.14286,0.02381B.1.14286,0.14286C.1.94591,0.14286D.1.94591
[单选题]已知=8,=-20,则(a-b)a3+(b-a)b3=( )。A.96B.-96C.2096D.12096