
A.a=25,b=-20
B.a=b=25
C.a=1,b=3
D.a=1,b=2
[单选题]A.a=25,b=-20B.a=b=25C.a=1,b=3D.a=1,b=2
[单选题]A.a=25,b=-20B.a=b=25C.a=1,b=3D.a=1,b=2
[单选题]A.a=25,b=-20B.a=b=25C.a=1,b=3D.a=1,b=2
[单选题]A.a=25,b=-20B.a=b=25C.a=1,b=3D.a=1,b=2
[单选题]A.a=25,b=-20B.a=b=25C.a=1,b=3D.a=1,b=2
[单选题]A.a=25,b=-20B.a=b=25C.a=1,b=3D.a=1,b=2
[单选题]A.a=25,b=-20B.a=b=25C.a=1,b=3D.a=1,b=2
[单选题]A.a=25,b=-20B.a=b=25C.a=1,b=3D.a=1,b=2
[单选题]A.a=25,b=-20B.a=b=25C.a=1,b=3D.a=1,b=2
[问答题]------------.