George returned after the war, only _______ that his wife had left him. [    ]

A. to be told

B. telling

C. being told

D. told

下列关于AD早期临床表现，正确的是（）

A.情景记忆障碍是筛选早期AD的敏感指标

B.AD早期存在语义记忆障碍，表现为找词困难、命名障碍和错语等

C.疾病早期往往有较严重的抑郁倾向。随后出现人格障碍、幻觉和妄想、虚构明显

D.早期脑电图检查可见α节律丧失及电位降低，脑电节律减慢的程度与痴呆严重程度无关