A.实轴                                                            B.焦点

C.渐近线                                                         D.以上都不对

A.(－∞,0)∪(1,+∞)                                        B.(－∞,0)∪［1,+∞)

C.(－∞,－1)∪(1,+∞)                                     D.(－∞,－1)∪［1,+∞)

A.1                              B.                                   C.2                              D.3

A.y=±x                                                       B.y=±x

C.y=±x                                                       D.y=±x

A.=1

B.=1

C.=1或=1

D. =1或=1

A.1条                          B.2条                          C.3条                          D.4条

A.45°                         B.30°                         C.60°                         D.90°

A.=1                                                        B.=1

C.=1                                                        D.=1