肝性脑病（）
A.血氨升高
B.血清胃泌素升高
C.血清淀粉酶升高
D.胃酸缺乏
E.血清胆红素升高
参考答案：A
Mr. Scott asked for an assistant because his work load was too ______.
A．preoccupied
B．onerous
C．trifling
D．omnipresent
NoReply原因造成RRC失败的主要原因有哪些？
