题型:填空题 Is this the second time that you _________ the Summer Palace?[ ]A. visit B. are visiting C. had visited D. have visited 查看答案
题型:填空题 短暂性脑缺血发作的临床特征中不应出现()A.发作突然B.恢复较快,一般仅遗留较轻的神经功能缺损。C.持续时间短暂。症状和体征在24小时内应完全消失D.常反复发作E.用小剂量阿司匹林治疗有效 查看答案