A. 组织病理学检查 B. CMV IgM IgG抗体血清学检测 C. 病毒培养 D. CMV QNAT及pp65抗原检测
A. 各分路电压之和 B. 各分路两端电压相同
A. 正确 B. 错误
A. standardize the departures and arrivals B. simplify the clearance C. expand the ATC system D. put them down on paper
A B