There are often three parts in a weather report, not including（）

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

单项选择题（）provides a selection of commonly used routes with their distances between principal and important positions.

A.The Mariner‟s Handbook
B.Admiralty Sailing Directions
C.Ocean Passages for the World
D.Mariner‟s Routeing Guide

单项选择题Which of the followings does not belong to main maneuvering facilities?（）

A.rudder
B.propeller
C.radar
D.sider thruster