A. Hoist the boat clear of the cradle B. Release the outboard part of the cradle C. Rig the tricing lines D. Crank the crescent out
A. Carbon disulfide B. Ethyl alcohol C. Isoprene D. Oleum
A. Roger wilco B. Romeo，romeo，romeo C. SOS acknowledged D. Mayday roger
A. The efficiency increases B. The efficiency decreases C. The efficiency remains the same D. The efficiency cannot be determined.
A. TTT B. The spoken word PAN C. The spoken word SECURITE D. XXX
A. MAYDAY B. PAN-PAN C. SECURITE D. SOS
A. Pan-Pan (3 times) B. Securite Securite Securite C. TTT TTT TTT D. No special prefix
A. of B. on C. at D. i
A. shown B. expressed C. appeared D. displayed
A. Mayday B. Pan C. Safety D. Interco
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