脑梗死好发于()
A.大脑前动脉供血区
B.大脑中动脉供血区
C.大脑后动脉供血区
D.椎动脉供血区
E.基底动脉供血区
参考答案:B
Even the best writers find themselves _____ for words.[ ]
A. lose
B. lost
C. to lose
D. having lost
肝癌最常见、最重要的症状与体征是()
A.食欲减退
B.进行性肝脏肿大及肝区痛
C.肝硬化表现
D.血性腹水
E.黄疸