再生障碍性贫血与PNH最主要鉴别点是()
A.前者有全血细胞减少
B.前者为正细胞性贫血
C.前者有血小板减少
D.前者出血倾向较轻
E.酸溶血试验
参考答案:E
She is going to take ________ lessons because she wants to be an actress. [ ]
A. musician
B. dancing
C. acting
D. piano
慢性根尖周炎的诊断主要依靠
A.牙髓电活力检查
B.冷热刺激检查
C.咬诊和叩诊
D.探诊和扪诊
E.X线检查