• 2022-07-23 问题

    下面哪一种不是小鼠造血干细胞表面标志物( ) A: LSK Flt3-Thy1low B: LSK CD150+CD48- Flt3- C: LSK Flt3+Thy1low D: LSK CD34-Flt3+

    下面哪一种不是小鼠造血干细胞表面标志物( ) A: LSK Flt3-Thy1low B: LSK CD150+CD48- Flt3- C: LSK Flt3+Thy1low D: LSK CD34-Flt3+

  • 2022-07-01 问题

    模拟数据编码的3种基本形式为? A: BSK、PSK、LSK B: ASK、FSK、PSK C: AKS、FKS、PKS D: BKS、PKS、FKS

    模拟数据编码的3种基本形式为? A: BSK、PSK、LSK B: ASK、FSK、PSK C: AKS、FKS、PKS D: BKS、PKS、FKS

  • 2022-06-07 问题

    What are the three basic forms of analog data coding? A: BSK, PSK, LSK B: ASK, FSK, PSK C: AKS, FKS, PKS D: BKS, PKS, FKS

    What are the three basic forms of analog data coding? A: BSK, PSK, LSK B: ASK, FSK, PSK C: AKS, FKS, PKS D: BKS, PKS, FKS

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