头痛最剧烈的是（）。
A.短暂性脑缺血发作
B.脑血栓形成
C.脑栓塞
D.脑出血
E.蛛网膜下腔出血
参考答案：E
矿井水仓为什么要设置2个？
She couldn't help, even though she tried not to,（）at the strange clothes her friend was wearing.
A. to laugh
B. laugh
C. laughing
D. laughed
