• 2022-05-31
    Which of the following does not belong to concrete durability.()‍
    A: resistance to freezing and thawing
    B: thermal shock resistance
    C: chloride resistance
    D: chemical resistance
  • B

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      Which of the following is not the reason why concrete needs reinforcement? A: Reinforcement has good tensile resistance, while concrete has good compressive resistance. B: Reinforcement has good compressive resistance as concrete. C: Engineers prefer ductile failure to brittle failure of the members. D: Reinforcement and concrete can work together to increase the bearing capacity of the members.

    • 1

      关于“Electric Shock Resistance”的合理解释是()

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      The input resistance of the whole multistage amplification circuit is the input resistance of ( )

    • 3

      The Thevenin resistance R Th is exactly equal to the Norton resistance R N

    • 4

      【单选题】BATNA与resistance point之间的关系是: B A. ATNA越优,resistance point越低 B. BATNA越差,resistance point越低 C. BATNA越优,resistance point越高 D. BATNA越差,resistance point越高