• 2022-06-30
    计算不定积分[img=198x47]1803b64875b3c80.png[/img]
    A: [img=267x30]1803b6487e83c97.png[/img]
    B: [img=267x30]1803b6488667d55.png[/img]
    C: [img=232x30]1803b6488db5e58.png[/img]
    D: [img=232x30]1803b6489530850.png[/img]