• 2022-06-19 问题

    tRNA分子3'-末端的碱基序列是 A: CCC-3' B: AAA-3' C: AAC-3' D: CCA-3' E: AAT-3'

    tRNA分子3'-末端的碱基序列是 A: CCC-3' B: AAA-3' C: AAC-3' D: CCA-3' E: AAT-3'

  • 2021-04-14 问题

    【单选题】AAT装置按动作次数分,有()装置。 A. 一次AAT B. 二次AAT C. 多次AAT

    【单选题】AAT装置按动作次数分,有()装置。 A. 一次AAT B. 二次AAT C. 多次AAT

  • 2022-06-19 问题

    tRNA分子3'-末端的碱基序列是 A: CCC-3'OH B: AAA-3'OH C: AAC-3'OH D: CCA-3'OH E: AAT-3'OH

    tRNA分子3'-末端的碱基序列是 A: CCC-3'OH B: AAA-3'OH C: AAC-3'OH D: CCA-3'OH E: AAT-3'OH

  • 2022-06-11 问题

    Let A be a n×n matrix, then ( ) A: AAT =ATA. B: det(AAT ) = det(AT A). C: if det(A) = 0, then A is invertible. D: if det(A) = 0, then AT is invertible.

    Let A be a n×n matrix, then ( ) A: AAT =ATA. B: det(AAT ) = det(AT A). C: if det(A) = 0, then A is invertible. D: if det(A) = 0, then AT is invertible.

  • 2022-06-11 问题

    Let A be an m×n matrix, then ( ). A: AAT =ATA. B: if rank(A) = m, then AT A is invertible. C: if rank(A) = n, then AAT is invertible. D: if rank(A) = n, then AT A is invertible.

    Let A be an m×n matrix, then ( ). A: AAT =ATA. B: if rank(A) = m, then AT A is invertible. C: if rank(A) = n, then AAT is invertible. D: if rank(A) = n, then AT A is invertible.

  • 2021-04-14 问题

    AAT装置的主要作用是

    AAT装置的主要作用是

  • 2021-04-14 问题

    AAT在什么情况下才会动作?

    AAT在什么情况下才会动作?

  • 2021-04-14 问题

    AAT装置应该保证只动作一次

    AAT装置应该保证只动作一次

  • 2021-04-14 问题

    在下列哪种场合,AAT装置才会动作()?

    在下列哪种场合,AAT装置才会动作()?

  • 2021-04-14 问题

    AAT的遗传表型以哪型最多()

    AAT的遗传表型以哪型最多()

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