硬膜外麻醉最严重的并发症
A．脊髓前角动脉综合征
B．硬膜外血肿
C．全脊麻
D．神经损伤
E．硬膜外脓肿
参考答案：C
Peter received a letter just now___his grandma would come to see him soon.
A．said
B．says
C．saying
D．to say
衣物上血渍的洗涤？
