单项选择题
The first communication satellite was used for the purpose of（）.
A.taking the place of the radio system B.introducing a new life-saving system C.saving the vessels in distress D.improving the communication on land
单项选择题 A sailor on board（）from appendicitis and required operation immediately.
单项选择题 The foreign seafarers said goodbye to us and looked forward to（）each other soon.
单项选择题 In the IMO SMCP the situations（）phrases using the work “can” appear it clear whether a possibility is referred to.
