On the bank of the river, we found him ________ on a beach, with his eyes _____ on a kite in the sky.

A．seated; fixing

B．sitting; fixing

C．seated; fixed

D．sitting; being fixed

女性患者，50岁。腹腔积液半年，5天前反复呕血、黑便，经抢救治疗后好转，近2日来嗜睡，定向力下降。

为明确诊断，下列检查对该患者可行的是（）。

A.脑电图

B.头MRI

C.血氨

D.诱发电位

E.心理智能测试

F.临界视觉闪烁频率