便血合并皮肤黄染、蜘蛛痣及肝掌，首先考虑（）
A.结肠癌
B.胃底食管静脉破裂出血
C.消化性溃疡
D.急性胆囊炎
E.胃癌
参考答案：B
— My leg hurts a lot.
— You’d better go to the doctor and have it _____.
A．examine
B．examined
C．examining
D．to be examined
社区治安
