The protection of land is the responsibility of armymen; civilians don’t need to worry about it.

A . mean sea level B . mean high water C . mean low water D . half-tide level

A . Safey helmets B . Goggles and spectacles C . Breathing apparatus D . Glove

A . 30 gallons per minute B . 40 gallons per minute C . 50 gallons per minute D . 60 gallons per minute

A . Double drive failure in an array and extremely high data fault tolerance B . Double drive failure in an array and more total storage capacity than RAID-5 C . Extremely high data fault tolerance and higher performance than RAID-5 D . Higher performance than RAID-5 and more total storage capacity than RAID-5

A . Using a small scope ratio B . Replacing that portion with a short length of chain C . Using a hockle to keep that portion of the anchor line off the bottom D . Using a synthetic line

A、stop valves B、pressure relief valves C、balance valves D、regulating speed valves

A . Safety helmets B . Buoyancy aids C . Breathing apparatus D . Immersion suit

A . Safety helmets B . Goggles and sepctacles C . Breathing apparatus D . Gloves and safety boot

A . Waitangi B . Kiwi C . Aotearoa D . Maoritanga

A . The standby database is protected against write operations.  B . The primary database is protected against write operations.  C . The primary database is protected against data loss and data divergence.  D . The standby database is protected against data loss and data divergence.&e

A . Safety helmets B . Goggles and sepctacles C . Breathing aparatus D . Safety suit

A . the total weight in air of the casing string is removed from the ship B . the hook load (weight of the casing string) is removed from the ship C . the weight of the casing inside the riser is removed from the ship D . the weight of the casing string added to the weight of the fill-up mud is removed from the shi

A．elementary B．expensive C．experimental D．economical

A Half of US energy is produced there. B The majority of undiscovered natural gas is stored there. C Most of coal was produced from there in 2000. D Most energy resources are reserved there.

A.Device level protection involves main control switch board protection, power board protection and TPS protection. If possible, configure a protection board for each of them. B.LSP linear protection, PW dual homed protection and ring network protection can be adopted on site for network side protection. C.LACP protection usually applies to devices at core layer. D.Switching in all protection modes supported by ZTE's devices can be implemented within 50ms.

The average height of the land is about 750 metres above the sea level. The Eurasian(欧亚大陆的) land mass is the largest with an area of 54,527,600 square kilometers. The smallest continent is the Australian mainland, with an area of about 7,614,600 square kilometers, which together with Tasmania, New Zealand, New Guinea and the Pacific Islands, is described as Oceania.The total area of Oceania is about 8,935,500 square kilometres, including West Iran which is political in Asia. The world's largest peninsula(半岛) is Arabia, with an area of about 3,327,500 square kilometres. The largest island in the world is Greenland, with an area of about 2,175,600 square kilometres. The largest island surrounded by fresh water is the Ilha de Marajo (4,022 square kilometres) in the mouth of the Amazon River, Brazil. The largest island in a lake is Manitoulin Island (2,766 square kilometres) in the Canadian section of Lake Huron. This island itself has on it a lake of 106 square kilometres called Manitou Lake, in which there are several islands. 1)、The total area of the world is about 211 million square kilometers. A.T B.F 2)、The area of Tasmania, New Zealand, New Guinea and the Pacific Islands adds up to about 1,320,900 square kilometres. A.T B.F 3)、Oceania is made up of Australia, New Guinea and the Pacific Islands. A.T B.F 4)、As mentioned in the passage there are several islands in Manitou Lake. A.T B.F 5)、The largest island surrounded by fresh water is in a river. A.T B.F