单项选择题
The satellites over the major ocean regions cover the globe（）.
A.besides the polar regions B.including the North Pole and the South Pole C.above 70°N and below 70°S D.as for north and south as 70°
单项选择题 In NAVTEX service, VITAL warnings will（）by transmitting station.
单项选择题 In NAVTEX service, the subject indicate character B means（）.
单项选择题 NAVTEX transmissions have a designed range of about（）nautical miles.
