• 2022-05-27
    已知[tex=6.857x2.786]WtlhyIjRSJW6NwSl9b9qHu398J4XKkt/dB2dlE22NwkW6OGU5qYdSc4wQGn/Qf2bMBWaHLhV4dZqir6S0YSh6g==[/tex]为某函数的全微分,则[tex=1.571x1.286]HKnp+uHPBk2bwxzOgbygNw==[/tex]
    A: -1
    B: 0
    C: 1
    D: 2
  • 举一反三