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设,则使函数y=xa的定义域为R且为奇函数的所有a的值为A.1,3B.1,3,C.1,3,...
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设
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAH8AAAAjCAYAAAC98dWfAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
,则使函数y=x
a的定义域为R且为奇函数的所有a的值为( )
A.1,3
B.1,3,
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAjCAYAAACdHYpiAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMNJREFU
SEvtVcERwyAMoyt7HTbxHEzhJVxsEiDJNdjQR3ut7zheCEvI4sG5wkoJwEqFlcPavRmAkCEAIx1P
2ABSFJ3ymgXQSxPHP8BXa6AmEh+UFVMzk81IN3b9AIAUG7edY917si9oDClcQDsxfeM828EoL4YU
3gPQG+kkrKGDHCSAXJJMQsXrRKLtcCEjzz5vZclGP4V2s3piFkBhNjGhy3aDiMeHJAQOVVTPx7Lj
nHRwdkCM4H2F+itd0+inhulmJJ97JQJOpq5KMgAAAABJRU5ErkJggg==
)
C.1,3,
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMRJREFU
OE+9k9kNxDAIRNmWaYdOXAdV0AQxPgjYKyvSRmspH044HsPko/XA6VjA6cCzACZr0x8sKiELVIoi
8XjFShbk98onzClDCqYqO4O1ixVWSCbQ8F1zhcTTU0OAaEHSiTsrewATaonzjYgWYOSxr1bQeQeD
cpGmWHC3eij1YSEvVNgBb+hFqO8gLzC0wrakKVKStC2rusht1h2V1y2SHHX2w+KmNKYvbWcI8w9Y
DMbYdPjV1ebLdcz42y0a/HVZB09eQKDSoCwsRLgAAAAASUVORK5CYII=
)
D.1,
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMRJREFU
OE+9k9kNxDAIRNmWaYdOXAdV0AQxPgjYKyvSRmspH044HsPko/XA6VjA6cCzACZr0x8sKiELVIoi
8XjFShbk98onzClDCqYqO4O1ixVWSCbQ8F1zhcTTU0OAaEHSiTsrewATaonzjYgWYOSxr1bQeQeD
cpGmWHC3eij1YSEvVNgBb+hFqO8gLzC0wrakKVKStC2rusht1h2V1y2SHHX2w+KmNKYvbWcI8w9Y
DMbYdPjV1ebLdcz42y0a/HVZB09eQKDSoCwsRLgAAAAASUVORK5CYII=
)
,3,
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