the Sun
stars
planets
All of the above
第1题：
The correction to be applied to a LoranC 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 LoranC Correction Tables
D.Sky waves cannot be matched to ground waves in LoranC to produce a usable reading
第2题：
第3题：
The most expensive phase of life cycle costing is:
A . R & D.
B . Applied research.
C . Production
D . Operations and support.
E . Termination.
第4题：
第5题：
第6题：
You have calibrated your RDF．When compiling the calibration table，the correction to be applied to any future RDF bearings is listed against the ______．
A.true bearing of the transmitter
B.relative bearing of the transmitter
C.heading of the vessel
D.time of reception
第7题：
第8题：
189 The most expensive phase of life cycle costing is:
A. R & D.
B. Applied research.
C. Production
D. Operations and support.
E. Termination
第9题：
第10题：
Which of the following options lists the steps in PPP session establishment in the correct order?（）