镰状韧带的肝外部分（）

A.走行于下腔静脉与胆囊之间

B.肝与前腹壁间的高回声带，伴腹水时可见到

C.连接肝脏至小网膜囊

D.与门静脉左支矢状部伴行

E.以上均对

Which is NOT a distress signal?（）

A.A continuous sounding with any fog signal apparatus

B.A signal sent by radiotelephone consisting of the spoken word Mayday

C.An International Code Signal of N.C

D.The firing of green star rockets or shells