Jane is one of the best students in her class who _____by their teacher.[ ]

A. are praised    

B. is praised    

C. praised    

D. praising

男，9岁，患贫血已2年余，全血细胞减少。网织红细胞0.01，骨髓增生活跃，疑诊为再生障碍性贫血，进一步检查哪项对诊断最有意义

A．骨髓红系细胞减少

B．骨髓中巨核细胞缺乏

C．骨髓中可见组织细胞

D．骨髓中吞噬细胞增多

E．骨髓中淋巴细胞增多