引起成人自发性颅内蛛网膜下腔出血最常见的原因为
A．脑动静脉畸形破裂
B．颅内动脉瘤破裂
C．脑瘤卒中
D．抗凝治疗
E．血质不调
参考答案：B
The special school accepts all disabled students, ____ educational level and background. [ ]
A. apart from
B. regardless of
C. in terms of
D. in addition to
—What were you doing _____ I phoned you yesterday?
—I was watering flowers in the garden.
A. after
B. before
C. when
D. and
