When is the boat race hold?

A . charted depth of water only B . depth of water，including tidal differences C . time and date of anchoring D . type of anchor being used

A . decrease B . increase C . decrease to zero D . remain unchanged

A . astern and the victim just off the bow B . ahead and the victim just off the bow C . just off the bow and the victim to windward D . just off the bow and the victim to leeward

A . amount of chain lying along the bottom increases B . length of the catenary is reduced C . mooring line tension is increased D . amount of chain lying along the bottom decrease

A . in B . at C . with D . o

A . remove their life preservers to make it easier to climb on board the rescue vessel B . climb on top of the boat while waiting for their turn to transfer to the rescue vessel C . remain seated inside and make the transfer one person at a time D . enter the water and swim over to the rescue vessel

A . secure all ventilation B . shut down the exhaust blowers C . shut down the intake blowers D . ventilate the cargo hold

A . amount of chain lying along the bottom increases B . length of the catenary is reduced C . mooring line tension is increased D . amount of chain lying along the bottom decrease

A . was breaking B . broke out C . would break out

A . The high temperature facilitates primary gravity separation B . Most of the oil and organic solvents are raised to the top layer C . The high the temperature is, the more the top oil will be collected D . The high temperature has little use on the separation of emulsified oil

A . No further securing is usually required B . Containers must have vertical lashings if they do not have twist lock securing C . All containers must have vertical and horizontal lashings D . The container must be locked into the cell guide

A . superheated B . saturated C . condensed D . convected

A . displacement tonnage B . weight forces C . buoyancy forces D . environmental force

A . The ventilators will automatically close by the action of fusible links B . The motor takes its air supply from outside the lifeboat to prevent asphyxiation of the crew C . A water spray system to cool the outside of the boat is operated by a high-volume manual pump D . An air tank will provide about ten minutes of air for the survivors and the engine

The motorcar will undoubtedly change significantly over the next 30 yearn. It should become smaller, safer, and more economical, and should not be powered by the gasoline engine. The car of the future should be far more pollution-free than present types. Regardless of its power source, the auto in the future will still be the main problem in mi)an traffic congestion. One proposed solution to this problem is the automated highway system. When the auto enters the highway system, a retractable arm will drop from the auto and make contact with a mil, which is similar to those powering subway trains electrically. Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer. The computer will then monitor all of the car's movements. The driver will use a telephone to dial instructions about his destination into the system. The computer will calculate the best mute, and reserve space for the car an the way to the correct exit from the highway. The driver will then be free to relax and wait for the buzzer that win warn him of his coming exit. It is estimated that au automated highway will be able to handle 10,000 vehicles per hour, compared with the 1,500 to 2,000 vehicles that can be carried by a present-day highway. One significant improvement in the future car will probably be ______ A．its power source B．its driving system C．its monitoring system D．its seating capacity

此题为判断题(对，错)。

A．positive information should be focused B．all options should be carefully diagnosed C．negative information should be considered D．maladaptive information should be avoided