(2011湖南永州,1,3分)的倒数是_________.
(2011四川凉山州,1,4分)的倒数是( )
A. B. C.2 D.
(2011广东肇庆,1,3分)的倒数是
A . B . C . D .
(2011山东菏泽,1,3分)-的倒数是
A. B. C. D.
(2011重庆市潼南,1,4分)5的倒数是
A. B.-5 C. - D. 5
(2011广东汕头,1,3分)-2的倒数是( )
A.2 B.-2 C. D.