下列肝脏疾病哪个不会产生复杂声像图()。
A.先天性囊肿
B.血肿
C.出血性囊肿
D.感染性囊肿
E.脓肿
参考答案:A
代谢性酸中毒的发生是()。
A.由于体内H2CO3增高所致
B.由于呕吐大量胃内容物所致
C.由于大量利尿所致
D.体内HCO3-下降所致
E.体内钾缺乏所致
Because of his serious illness, the manager had to____ from his position.
A.resign
B.design
C.sign
D.leave