There is a drifting mine()in position 21 degrees 31 minutes North 124 degrees 20 minutes East.
A、report
B、reports
C、reported
D、reporting
A、report
B、reports
C、reported
D、reporting
A、The saloon is over there. B、The galley is over there. C、The cabin is over there. D、The lavatory is over there.
A、A. The saloon is over there. B、B. The galley is over there. C、C. The gallery is over there. D、D. The lavatory is over there.
A、There is something wrong with the derrick at hatch No.2. B、There is something wrong with the derrick at hatch No.1. C、There is something wrong with the winch at hatch No.2. D、There is something wrong with the winch at hatch No.1.
A、there is a minor emergency B、there is an actual emergency C、there were a minor emergency D、there were an actual emergency
A、Current can be determined by measuring the direction and distance between simultaneous EP and DR positions B、The drift of the current should be averaged out on a one hour basis C、After the current is determined,it should not be used for further plotting because it is an unknown variable D、The distance between a simultaneous DR position and fix is equal to the drift of the current