Never in my wildest dreams ________these people are living in such poor conditions．

A．I could imagine

B．could I imagine

C．I couldn’t imagine 　

D．couldn’t I imagine

男性，65岁，昨日突发头晕，今晚晕症状加重，下午言语欠清，复视，右侧肢体无力。持续20分钟症状消失，神经系统检查正常，最可能的诊断为（）

A.硬膜外出血

B.脑栓塞

C.椎动脉系统TIA

D.蛛网膜下腔出血

E.颅内肿瘤