A.＞和均不能成立

B.＞和均不能成立

C.＞和(a+)²＞(b+)²均不能成立

D.和(a+)²＞(b+)²均不能成立

A.xy＞yz                           B.xz＞yz

C.zy＞xz                           D.x|y|＞z|y|

①a＜ba²ⁿ⁺¹＜b²ⁿ⁺¹(n∈N^*);

②0＜a＜b(2a+1)ⁿ＜(2b+1)ⁿ(n∈N^*);

③a＞b＞c＞0;

④a＞b＞1b＞a,其中错误命题的个数是(    )

A.0               B.1              C.2               D.3

A.(-a)²＜(-ab²)²                                            B.(-ab²)^-1＜(-a)^-1

C.(-a)＜(-ab²)                               D.0.5^-a＜0.5^1-a

A.log_a(xy)＜0                        B.0＜log_a(xy)＜1

C.1＜log_a(xy)＜2                   D.log_a(xy)＞2

A.a＞b＞0                           B.a＞0＞b

C.＜＜0                        D.＞＞0

A.＞                         B.a+＞b+

C.a+＞b+                     D.