0  48143  48151  48157  48161  48167  48169  48173  48179  48181  48187  48193  48197  48199  48203  48209  48211  48217  48221  48223  48227  48229  48233  48235  48237  48238  48239  48241  48242  48243  48245  48247  48251  48253  48257  48259  48263  48269  48271  48277  48281  48283  48287  48293  48299  48301  48307  48311  48313  48319  48323  48329  48337  447090 

5.已知数列6ec8aac122bd4f6e是各项均为正数的等比数列,6ec8aac122bd4f6e

                                                                                                                              (    )

       A.2                        B.33                      C.84                      D.189

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       C.若6ec8aac122bd4f6e                 D.若6ec8aac122bd4f6e

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       A.若6ec8aac122bd4f6e                      B.若6ec8aac122bd4f6e

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4.设6ec8aac122bd4f6e是两条不同的直线,6ec8aac122bd4f6e是两个不重合的平面,则下列命题中正确的是 (    )

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       A.6ec8aac122bd4f6e                   B.6ec8aac122bd4f6e                    C.6ec8aac122bd4f6e                  D.6ec8aac122bd4f6e

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3.设6ec8aac122bd4f6e等于                                                                         (    )

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       A.6ec8aac122bd4f6e            B.6ec8aac122bd4f6e                C.6ec8aac122bd4f6e              D.6ec8aac122bd4f6e

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2.抛物线6ec8aac122bd4f6e的准线方程为                                                                            (    )

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       C.6ec8aac122bd4f6e                              D.6ec8aac122bd4f6e

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       A.6ec8aac122bd4f6e                                    B.6ec8aac122bd4f6e

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