盆腔脓肿
A．伴里急后重B．可有胸腔积液C．可出现膈下游离气体D．可伴有失血性休克症状E．严重的全身中毒症状
参考答案：A
The old man was very ________ what his son did. [ ]
A. surprised in
B. surprised to
C. surprising at
D. surprised at
山水画在魏晋南北朝时期兴起的原因是什么？
