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相关考题
单项选择题 （）is the distance east or west measured in degrees...
单项选择题 （）refers to the angle between true North and the ...
单项选择题 A gnomonic projection is based on a(n)（）.
单项选择题 A great circle track provides the maximum saving in...
单项选择题 A lateral system buoy displaying a quick light（）.
单项选择题 A light characteristic of composite group flashing in...
单项选择题 A light having characteristics which include color va...
单项选择题 A light that has a light period shorter than its d...
单项选择题 A lighted preferred-channel buoy may show a（）.
单项选择题 A lighthouse can be identified by its（）.
单项选择题 A line of position formed by sighting two charted o...
单项选择题 A line on the Earth parallel to the equator is a（...
单项选择题 A mid-channel buoy，if lighted，will show a（）.
单项选择题 A nun buoy will（）.
单项选择题 A parallel of latitude other than the equator is a...
单项选择题 A plane perpendicular to the polar axis will never ...
单项选择题 A plane that cuts the Earth’s surface and passes t...
单项选择题 A plane that cuts the Earth’s surface at any angle...
单项选择题 A preferred-channel buoy may be（）.
单项选择题 A preferred-channel buoy will show a（）.
单项选择题 A relative bearing is always measured from（）.
单项选择题 A rock and sand structure extending from the bank o...
单项选择题 A SEAMARK，I.E. A BUOY，INDICATING THE NORTH，EAST，S...
单项选择题 A special mark (yellow buoy)，if lighted，may exhibi...
单项选择题 A special purpose buoy shall be（）.
单项选择题 A spherical buoy may be（）.
单项选择题 A structure，usually made of stone，or cement pilings...
单项选择题 A vessel is（）when she is not at anchor，made fast...
单项选择题 A V-shaped ripple with the point of the V pointing...
单项选择题 A white buoy with a blue band is（）.
单项选择题 A white buoy with an open-faced orange diamond on ...
单项选择题 A white buoy with an orange rectangle on it display...
单项选择题 A yellow buoy may exhibit a(n)（）.
单项选择题 A yellow buoy may mark a(n)（）.
单项选择题 An orange and white buoy indicating a vessel-exclusi...
单项选择题 An orange and white buoy marking a danger area will...
单项选择题 An orange and white buoy marking an area where oper...
单项选择题 An orange and white buoy with a rectangle on it di...
单项选择题 Branford reef is（）.
单项选择题 Buoys are marked with reflective material to assist ...
单项选择题 Buoys which mark dredging areas are painted（）.
单项选择题 Buoys which mark isolated dangers are painted with a...
单项选择题 Buoys which only mark the left or right side of th...
单项选择题 Except for N-S courses，and E-W courses on the equ...
单项选择题 Fishing stake，the position of which frequently（），ex...
单项选择题 From your position you observe a rotating white and...
单项选择题 How is the intensity of a light expressed in the L...
单项选择题 How would you pass a red buoy in the maritime buoy...
单项选择题 Leeway is the（）.
单项选择题 （）is the process by which the position of the ves...
单项选择题 （）means the curve on the earth’s surface which cu...
单项选择题 A bold reef is a reef（）.
单项选择题 A buoy having red and green horizontal bands would ...
单项选择题 A buoy marking a wreck will show a(n)（）.
单项选择题 A buoy with a composite group-flashing light indicat...
单项选择题 A buoy，being a shape of cylinder and with red grou...
单项选择题 A cardinal mark showing an uninterrupted quick-flashi...
单项选择题 A dead reckoning (DR) plot（）.
单项选择题 A dead reckoning (DR) plot（）.
单项选择题 A fairly accurate estimation of a ship’s position c...
单项选择题 A large navigational buoy (LNB) is painted（）.
单项选择题 A line connecting all possible positions of your ves...
单项选择题 A line of position is（）.
单项选择题 A position obtained by applying only your vessel’s ...
单项选择题 A position obtained by crossing lines of position ta...
单项选择题 A position that is obtained by applying estimated cu...
单项选择题 A position that is obtained by using two or more i...
单项选择题 A relative bearing is always measured from（）.
单项选择题 A single line of position combined with a dead-reck...
单项选择题 A vessel’s position should be plotted using bearings...
单项选择题 At the magnetic equator there is no induced magnetis...
单项选择题 In plotting a running fix，how many fixed objects ar...
单项选择题 Lighted white and orange buoys must show which color...
单项选择题 Preferred channel buoys indicate the preferred channel...
单项选择题 Restricted areas at locks and dams are indicated by...
单项选择题 The luminous range of a light takes into account th...
单项选择题 The maximum distance at which a light may be seen ...
单项选择题 The nominal range of a light may be accurately defi...
单项选择题 The period of a lighted aid to navigation refers to...
单项选择题 The positions and characteristics of lights and buoys...
单项选择题 The shortest distance between any two points on eart...
单项选择题 There is sufficient anchorage for（）at all time arou...
单项选择题 This is（）where we shall anchor.
单项选择题 Two navigational hazards are located near to each ot...
单项选择题 Uncharted lights，fog signals and radar beacon transmi...
单项选择题 What describes an accurate position that is NOT base...
单项选择题 What indicates a dual purpose buoy? （）
单项选择题 What is the light characteristic of a lighted，prefer...
单项选择题 What is the major advantage of high altitude observa...
单项选择题 When a buoy marks a channel bifurcation，the preferre...
单项选择题 When approaching a preferred-channel buoy，the best c...
单项选择题 When entering a channel from seaward，the numbers on...
单项选择题 When entering from seaward，a buoy displaying a singl...
单项选择题 When making landfall at night，you can determine if ...
单项选择题 When navigating a vessel，you（）.
单项选择题 When using a buoy as an aid to navigation which of...
单项选择题 A body can only be observed at lower transit when（...
单项选择题 A correction for augmentation is included in the Nau...
单项选择题 A double star is a star that（）.
单项选择题 A first magnitude star is（）.