严重肝炎引起组织水肿的主要原因是（）
A.毛细血管压升高
B.血浆蛋白减少
C.组织胶体渗透压升高
D.组织静水压降低
E.淋巴回流受阻
参考答案：B
女性，20岁。以双手关节肿痛伴发热2周来诊。实验室检查：血常规三系均减低，ANA阳性，RF35IU/L，补体C3、C4减低。以下哪种特征性皮肤改变支持本病的诊断（）
A.蝶形红斑
B.结节性红斑
C.网状青斑
D.环形红斑
E.雷诺现象
— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
— Oh, dear! She _____ a lot of difficulties! [ ]
A. may go through
B. might go through
C. ought to have gone through
D. must have gone through
