The information regarding ports such as buoyed channels,fairway,location and number of terminals,river channels,details of navigational marks,location of overhead bridges, underground cables etc. are shown in（）

单项选择题On a weather map,a large letter “h” means（）

A.a high pressure area with cool, dry air and fair weather
B.a high pressure area with warm, moist air and inclement weather
C.horse latitudes, with rough seas and strong winds
D.a heavy squall line near the “H”

单项选择题There are often three parts in a weather report, not including（）

A.warning
B.general synopsis
C.forecast
D.traffic density

单项选择题Which of the following is defined as static information of AIS?（）

A.Navigational status
B.Safety related messages
C.MMSI
D.Route plan

单项选择题When hitting a solid object such as ship or an airplane,the radar waves are reflected back（）they came.

A.in the way
B.the way
C.by the way
D.through the path

单项选择题What does SSO stand for regarding ship security?（）

A.Ship security office
B.Ship security officer
C.Ship security operator
D.Ship safety office