题目内容
设正数a,b满足
, 则
( )
A.0 B.
C.
D.1
B
解析:
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设正数a, b满足
( )
| A.0 | B. | C. | D.1 |
题目内容
设正数a,b满足
, 则
( )
A.0 B.
C.
D.1
B
![]()
![]()
设正数a, b满足
( )
| A.0 | B. | C. | D.1 |