水肿日久，症见神昏肢冷，面色晦滞，泛恶口臭，二便不通，肌衄开宣，舌红绛，苔焦黄，脉细数，辨证为（）

A.邪毒内闭，元神涣散

B.阳明腑实证

C.肝火旺盛，二扰神明

D.痰火内攻，上扰清窍

E.邪毒内攻，上蒙清窍

In spite of these unexpected difficulties, the Chinese scientists ________ to carry out their experiments on

the lonely island.[      ]

A. threatened  

B. managed

C. offered  

D. hesitated