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A.5^－x<5^x<0.5^x                                                                                                    B.5^x<0.5^x<5^－x

C.5^x<5^－x<0.5^x 

D.0.5^x<5^－x<5^x

A.、、、                                      B.、、、

C.、、、                                      D.、、、

A.a>0                                                             B.a>1

C.0<a<1                                                        D.a≠1

A.(－∞，+∞)                                                B.(0，+∞)

C.(1，+∞)                                                    D.(0，1)

A.a<b<1<c<d                                                  B.b<a<1<d<c

C.1<a<b<c<d                                                  D.a<b<1<d<c