• 2021-04-14
    A. DHA is highly abundant in the membranes of the retina (photoreceptor cells)

    B. Arachidonic acid is used to make prostaglandins

  • A is true, B is true.

    内容

    • 0

      【单选题】设事件A满足0<P(A)<1,事件B满足P(B)>0,且P(B|A)=P(B| A ),则必有()成立。 A. P(A|B)=P( A |B) B. P(A|B)≠P( A |B) C. P(AB)=P(A)P(B) D. P(AB)≠P(A)P(B)

    • 1

      【单选题】求公式 Q ∨ (P → Q) 主析取范式。 A. (P∧﹁Q)∨(﹁P∧Q)∨(P∧Q) B. (﹁P∧﹁Q)∨(P∧﹁Q)∨(P∧Q) C. (﹁P∨﹁Q)∧(P∨﹁Q)∧(P∨Q) D. (﹁P∧﹁Q)∨(﹁P∧Q)∨(P∧Q) 答

    • 2

      He was highly praised ____his brave deeds. </p></p>

    • 3

      下列命题公式是永真式的是( ) A: A.(P∧﹁P ) « Q B: B.﹁(P®Q )∧Q C: C.(P®Q )∨﹁Q D: D.(P∨P )∧(P ®﹁P )

    • 4

      Addition is often used to ____. </p> </p>