A .910.5nmile
B .915.3nmile
C .917.9nmile
D .913.6nmile
[单选题]某船拟由(42°N,140°E)驶往(40°N,120°E),则恒向线航向为()。A .82°.5B .97°.5C .262°.5D .277°.5
[单选题]某轮从(40°N,140°E)航行到(42°N,160°E),则应驶的恒向线航程为()。A .925.5nmileB .913.6nmileC .908.5nmileD .903.1nmile
[单选题]某轮从(30N,120E)驶往(20N,158E),则恒向线航向为()。A .73°.8B .106°.2C .163°.8D .253°.8
[单选题]某轮从(40°N,140°E)航行到(42°N,160°E),则应驶的恒向线航向为()。A .082°.5B .097°.5C .262°.5D .277°.5
[单选题]某轮从(10°N,160°E)航行到(20°N,140°E),则应驶的恒向线航程为()。A .1180.5nmileB .1194nmileC .1190nmileD .1199nmile
[单选题]某轮从(00°,120°E)航行到(20°N,130°E),则应驶的恒向线航程为()。A .830.5nmileB .851.6nmileC .842.1nmileD .840.1nmile
[单选题]由起航点35°N,120°E到45°N,160°E的大圆航程为()。A .1912nmileB .1812nmileC .2002nmileD .1892nmile
[单选题]某船位于(42°N,140°E),真航向270°,航程210nmile,则经差和东西距分别为()。A .4°.5E,145′B .4°.7W,145′C .4°.5E,210′D .4°.7W,210′
[单选题]某船位于(05°N,140°E),真航向180°,航程400nmile,则到达点的纬度和东西距分别为()。A .6°.7S,400B .1°.7N,400C .1°.7N,0D .1°.7S,0
[单选题]某轮由A点(55°N,120°E)航行到B点(65°N,130°E),则AB间的东西距为()。A .600nmileB .253.6nmileC .344.1nmileD .300nmile