文档介绍：《倒数》同步练****br/>一、判断题
。()
。()
, = 。()
。()
。()
。()
。()
是个自然数,它的倒数是。()
()
()
二、单选题
(        )。
A.                                          B.                                          C.                                          D. 
(        )。
A.                                           B.                                           C.                                           D. 
(        )互为倒数。
A.                                          B.                                          C.                                          D. 
× =1,所以(        )。
A. 是倒数                 B.   和都是倒数                 C. 是倒数                 D. 
和互为倒数
?(         )
A.  和18                           B.                            C.  和                           D. 和
×=1,所以可得这两个数(   )
A. 是倒数                                   B. 是整数                                   C. 是互为倒数[来源:学|科|网]
(   )
A.                                              B.                                              C. 
(   )
A. 1和0                                     B.                                      C. 3和
×=b×=c×=1那么a、b、c这三个数中最大的数是(   )
A. a                                              B. b                                              C. c
(      )
A. 都是倒数                                  B. 互为倒数                                  C. 不是倒数
(      ) 
A. 是0                                          B. 是1                                          C. 没有
× =1,所以和(    )
A. 都是倒数                                    B. 相等                                    C. 互为倒数
(    )
A. 小                                        B. 可能相等                                        C. 大    
(    )
A. 1的倒数是1                          B. 0的倒数是0                          C. 真分数的倒数大于1
+=1