腹部叩诊肝浊音界消失，应首先考虑的疾病是（）
A.肺气肿
B.急性胃肠穿孔
C.急性肝坏死
D.肝癌
E.肝囊肿
参考答案：B
Riding a bicycle can be fun. But _______ you ride a bike to work, and then there isn’t one to ride home?
A．how come
B．what if
C．no matter how
D．wherever
DIC常见的出血部位是（）
A.皮肤和黏膜
B.鼻出血
C.牙龈出血
D.内脏出血
E.颅内出血
