椎-基底动脉系统短暂性脑缺血发作不可能出现的症状为（）
A.失写
B.复视
C.构音障碍
D.眩晕
E.交叉瘫
参考答案：A
Tell me _______how it came about that you were 20 minutes late for class. You needn’t go into details.
A．in advance
B．in brief
C．in total
D．in vain
阳台和雨蓬板筋绑扎梅花扣，会有什么后果？
