Recurvature of a hurricane’s track usually results in the forward speed().
A、A.increasing
B、B.decreasing
C、C.remaining the same
D、D.varying during the day
A、A.increasing
B、B.decreasing
C、C.remaining the same
D、D.varying during the day
A、center of buoyancy B、center of flotation C、uncorrected height of the center of gravity of the vessel D、center of gravity of the vessel corrected for free surface effects
A、Number of drives X capacity of the smallest drive B、(Number of drives 2) X capacity of the smallest drive C、Number of drives X capacity of the largest drive D、(Number of drives 1) X capacity of the smallest drive
A、volume of liquid in the tank B、volume of displacement of the vessel C、location of the tank in the vessel D、height of the center of gravity of the vessel
A、weight of cable to weight of vessel B、weight of cable to weight of anchor C、length of anchor to depth of water D、length of cable to depth of water
A、the raising of the standards of teaching and the reform in curriculum B、the raising of the standards of teaching and learning and the restructuring of the schools C、the raising of the standards of teaching and the improvement of the standards of learning D、None of the above
A、the supply of normal air and removal of compressed air B、the supply of fuel oil and combustion of the atomized oil C、the supply of fresh air and removal of exhaust gases D、the supply of fresh air and removal of the extra heat