无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項(xiàng)選擇題

The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found().

A.on loran charts covering areas where sky waves are used
B.in the Radio Aids to Navigation,PUB 117
C.in the Loran-C Correction Tables
D.Sky waves cannot be matched to ground waves in LORAN-C to produce a usable reading

微信掃碼免費(fèi)搜題