板状腹见于()
A.肝硬化腹水
B.急性胃穿孔致腹膜炎
C.胰腺囊肿
D.癌症晚期恶病质
参考答案:B
如何选择电流互感器?
Study hard, ______you won’t pass the coming English exam. [A] and [B] or [C] but