再生障碍性贫血( )
A．大细胞正色素贫B．正细胞正色素贫血C．小细胞低色素贫血D．小细胞正色素贫E．大细胞低色素贫血
参考答案：B
The parents as well as the baby ______ in high spirits.
A．are
B．is
C．has been
D．have got
损伤性食管炎感染可向深部扩散，或食管穿孔扩散到食管周围引起食管周围炎，重者形成________。胸段食管穿孔，可发生________脓肿。
