下列方法，属于精神分析治疗常用的是（）。
A.系统脱敏
B.厌恶治疗
C.患者中心
D.催眠治疗
E.自由联想
参考答案：E
_____ crying sadly, he raised his head and let tears stream down his face on purpose. [ ]
A. To be seen
B. Seeing
C. To see
D. Having seen
足月时羊水量约为（）
A.2000ml
B.2100ml
C.1000ml
D.300ml
E.250ml
