非阵发性房室交界区性心动过速最常见的病因是（） A.心肌炎 B.急性风湿热 C.心肌

肝硬化患者最常见的并发症是（）

A.便血

B.上消化道出血

C.自发性腹膜炎

D.原发性肝癌

E.肝性脑病

A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°.Which action should be taken to remove this error during compass adjustment（）.

A.If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should add some magnets

B.If the blue ends of the magnets are aft you should lower the fore-and-aft tray

C.If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should reverse the magnets

D.If the blue ends of the magnets are forward，and the fore-and-aft tray is at the bottom，you should add some magnets

建立账套时需设置的信息包括( )。

A．设置账套信息

B．设置凭证类别

C．设置启用日期

D．输入期初余额

（）可采用光纤、电力线载波通信、微功率无线通信信道等。

A.远程信道

B.本地信道

C.通信信道

D.自助用电服务终端