Terson综合征是指（）
A.玻璃体积血
B.蛛网膜下腔出血
C.硬脑膜下出血
D.视网膜浅层出血
E.脉络膜上腔出血
参考答案：A, B
It was his mother came in to prepare his lessons. [ ]
A. not until; did the boy begin
B. until; that the boy began
C. until; did the boy begin
D. not until; that the boy began
青霉素类抗生素最严重的不良反应是（）
A.过敏性休克
B.肝脏损害
C.神经炎
D.肾脏毒性
E.骨髓毒性
