A vessel entering the eye of a hurricane should expect（）.

A . in collision between B . in collision with C . collision ainst D . collision with

A . It's a warning of navigation for my vessel B . It's an advice from Port Control to order my vessel not enter the traffic route of the harbor C . It's an advice to change my estimated time of entering the traffic route D . It's an order from the VTS to indicate my vessel to follow the traffic route

A . not under command B . restricted in her ability to maneuver C . engaged in towing D . fishing

A . has completed the terms of the charter party B . is in all respects ready to load C . is in all respects ready to sail D . is safely moored or at a suitable anchorage

A . Nothing; The Pilot is required by law and is solely responsible for the safety of the vessel B . State his concerns to the Pilot but do not interfere with the handling of the vessel C . Direct the Pilot to stop the vessel and anchor if necessary until the situation clears D . Recommend an alternative action and if not followed relieve the Pilot

A . propeller hub B . lignum vitae C . shaft packing D . labyrinth seal

A . apply to B . apply for C . apply with D . apply i

A . It is faster B . It is slower C . There is no change D . It remains constant for varying propeller revolutio

A . in an emergency B . to engage in fishing within the zone C . to cross the traffic separation scheme D . All of the above

A . including B . inclusive of C . except that D . other tha

A . besides B . excepted C . otherwise D . other tha

A . Wall cloud B . Nimbostratus cloud C . Bar D . Funnel

A . all information contained on the barge's Certificate of Inspection B . the condition of all towing gear to be used C . all navigational aids to be used D . the barges load line and draft reading

A . one short blast B . one prolonged blast C . two short blast

A . boric acid solution B . water C . baking soda solution D . ammonia

A . stand-on vessel and would sound two short blasts B . give-way vessel and would sound no whistle signal C . stand-on vessel and would sound no whistle signal D . give-way vessel and would sound two prolonged blasts followed by two short blast

A . not exceed bare steerageway during the transit B . take a strain as soon as you can to control the tow C . come up to speed very slowly and maintain a safe speed D . come up to speed quickly，then cut back power considerably to ease the strai

A . high pressure liquid B . low pressure vapor C . high pressure vapor D . low pressure liquid

Researchers at the Biorobotics (生物机械技术)Laboratory of McGill University in Montreal are building a robot , known as Micro Surgery robot-1(MSR- I for short), that will perform. delicate operations under the control of a human surgeon. The robot is specifically designed for performing eye surgery but could have other applications, such as the removal of brain tumors. The system could also be used to allow surgeons and their students to practise simulated surgery that feel like the real thing- without the real consequences for the patients. During the operations, the surgeon manipulates a set of control known as the master. These are connected through a high- performance computer to the robot. Both the master and the robot have two limbs, When the surgeon moves the masters' limbs, the robots limbs move in exactly the same way, except that the movements can be scaled down as much as a thousand times. This will eliminate hand tremor and poor accuracy and thus reduce the damage to the eye that can occur with present microsurgery techniques. Each of the robots limbs has a minimum movement of one micrometer---more than one hundred times the precision of the human hand. The computer also creates a three - dimensional robot' s eye view of the inside of the eye that the surgeon can see by wearing a virtual reality helmet (虚拟现实头盔) that has a small lens in front of each eye. To provide the surgeon with such a realistic experience, MSR-I must be able to move rapidly, but this requires extremely fast computing. To handle the computational demands of instant interaction, the McGill team is constructing its own parallel-processing computer., It is al so studying areas such as muscle mechanism, artificial intelligence and optics, and has a already built another micro robot MR- I, capable of manipulating a single living cell. Although commercial applications of the new system are not expected for several years, its basic mechanical components will be ready for testing in a few months, "The day when micro robots will be able to perform. surgery without human intervention is many years away," says Hunter, "in the meantime , a system such as MRS-I is a necessary precursor." The so-called "virtual reality "mentioned in this passage is actually. A．a surgical tool used for operations B．a computer system used to produce life- like illusions C．a new kind of applications in a visual technology. D a way to carry out operations in a visual sense

—— Did he notice you enter the room —— I don’ t think so.He＿＿＿＿＿to the rdio with his eyes shut.—— Did he notice you enter the room —— I don’ t think so.He＿＿＿＿＿to the rdio with his eyes shut.listened B．ws listening C．hs listened D．hd listened A．listened B．was listening C．has listene D．had listened