• 2022-06-09
    设 [img=122x25]18033d321cb1dab.png[/img], 且[img=58x43]18033d3224fad5b.png[/img],则下式( )成立。​‌​
    A: [img=78x27]18033d322d5651c.png[/img]
    B: [img=109x27]18033d323639530.png[/img]
    C: [img=87x25]18033d323dd557b.png[/img]
    D: [img=87x25]18033d32468bae6.png[/img]