The divers hoped to ________ some of the secrets of the seabed.
The divers hoped to ________ some of the secrets of the seabed.
Data obtained from the investigations __________ that there is a large amount of oil below the seabed in this area.
Data obtained from the investigations __________ that there is a large amount of oil below the seabed in this area.
Doppler speed log may work in two mode ,one is seabed tracking ,another is______ .
Doppler speed log may work in two mode ,one is seabed tracking ,another is______ .
Which of the following is the most abundant solid mineral in the seabed?( ) A: Manganese nodule B: Nickel ore C: Copper mine D: Cobalt ore
Which of the following is the most abundant solid mineral in the seabed?( ) A: Manganese nodule B: Nickel ore C: Copper mine D: Cobalt ore
The most doubtful and unpredictable factor in a mooring system is the（）. A: ability of the anchors to hold in a seabed B: anchor chain catenary length C: variability of the fairlead D: angle of the fluke
The most doubtful and unpredictable factor in a mooring system is the（）. A: ability of the anchors to hold in a seabed B: anchor chain catenary length C: variability of the fairlead D: angle of the fluke
海光缆要想贴合在海床上，其弯曲半径必须小于多少米？ How many meters must the bending radius of the submarine optical cable be less than if it is to fit on the seabed?
海光缆要想贴合在海床上，其弯曲半径必须小于多少米？ How many meters must the bending radius of the submarine optical cable be less than if it is to fit on the seabed?
In simplified Tai Chi, the only movement in which the heel points on the ground is called (). A: posing as a pheasant standing on one foot B: the seabed needle C: Wave the pipa D: The white crane spreads its wings
In simplified Tai Chi, the only movement in which the heel points on the ground is called (). A: posing as a pheasant standing on one foot B: the seabed needle C: Wave the pipa D: The white crane spreads its wings
How did “columnar joints” come into being? A: The magma condensed into stone columns. B: The pumice stones piles layer by layer. C: The volcanoes look like columnar joints. D: Creatures were gradually fossilized and they slowly turned into a thick limestone layer on the seabed
How did “columnar joints” come into being? A: The magma condensed into stone columns. B: The pumice stones piles layer by layer. C: The volcanoes look like columnar joints. D: Creatures were gradually fossilized and they slowly turned into a thick limestone layer on the seabed
Which of the following is NOT an etiological myth(推源神话)? A: Humans eat good meat after sacrifice because Prometheus split meat between humans and gods. B: Earthquakes happen when angry Poseidon strikes the seabed with his trident. C: Zeus often cheats on his wife because he is the father of gods. D: Human have fire because Prometheus stole it for them.
Which of the following is NOT an etiological myth(推源神话)? A: Humans eat good meat after sacrifice because Prometheus split meat between humans and gods. B: Earthquakes happen when angry Poseidon strikes the seabed with his trident. C: Zeus often cheats on his wife because he is the father of gods. D: Human have fire because Prometheus stole it for them.