（）are operated as a secondary method of al_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

（）are operated as a secondary method of alerting in the GMDSS.

A.satellite EPIRBs

B.Non-satellite EPIRBs

C.SES and DSC

答案

参考答案：A

选择题

She thought herself _______ to her friends because her family was rich.

A．superior

B．better

C．richer

D．higher

单项选择题

下列哪种疾病可出现肺血减少的X线征象是（）

A.室间隔缺损

B.风湿性心脏病二尖瓣狭窄

C.原发性肺动脉高压

D.高血压性心脏病

E.房间隔缺损