A vessel servicing a pipeline during the day shall display ______.A.three black shapes in

________ is not a vessel restricted in her ability to maneuver．

A.A vessel engaged in laying， servicing or picking up a navigation mark， submarine cable or pipeline

B.A vessel engaged in dredging， surveying or underwater operations

C.A vessel engaged in replenishment or transferring persons， provisions or cargo while underway

D.A power driven vessel which because of her draught in relation to the available depth and width of navigation water is severely restricted in her ability to deviate from the course she is following

(73) A．First Come First Serve

B．Shortest Seek Time First

C．Scan

D．None of the above

A. could stay

B. could have stayed

C. can stay

D. must have stayed

A recognize ;

B be recognizing ;

C be recognized

A. Processor

B. Hard drive

C. Battery

D. Optical drive

A、DESCRIPTION AND OPERATION

B、TESTING AND TROUBLESHOOTING

C、MAITENANCE PRACTICES

D、SERVICING

A.Test the pressure gauge for correct reading

B.Weigh the cartridge

C.Replace the dry chemical

D.Pressure test the discharge hose

Task 1

Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 1 to 5. For each question or statement there are 4 choices marked A, B, C and D You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the center.

Car servicing is something that every car owner has to experience at least some time of the year. The best method to service your car is to go to your car service station and have the servicing done methodically (有条理地) according to your car maker. Consider this: Your car is up and running smoothly but the mileage (里程) figures indicate that you need to have it serviced Certainly, this is the right thing to do but have you wondered what actually goes in to make you pay that servicing bill every 6 months？

Servicing your car is a simple DIY (Do It Yourself) job that you can learn quickly and easily save some good money.

If you have never serviced your car before personally, here&39;s your resource: Servicing Basics

Car servicing essentially means inspecting the ear thoroughly for any damaged components, and replacing some parts regularly that wear out over time. If you review carefully it is certainly possible to do all this by yourself, as below:

You will need a complete set of tools as provided by your car maker when you purchased the vehicle. This will usually consist of all the spanners (扳手) that you might need

Completely servicing your ear will need a few hours but you will end up saving a lot of money. Besides, it&39;s fun too and a lot of learning.

What is the best way to service your car？

A.To service your car by yourself.

B.To turn to other ear owners for help.

C.To send your ear back to the ear maker.

D.To have your car serviced at the service station.

What indicates that your ear needs servicing？A.Weather conditions.

B.Gas consumption.

C.Mileage figures.

D.Servicing bills.

Why does the author suggest servicing your car by yourself？.A.It is money-saving and easy to learn.

B.It is a simple way to save energy.

C.It is convenient and challenging.

D.It is done more efficiently.

Some component parts should be replaced regularly because ______.A.they are outdated

B.they need to be oiled

C.they become worn out

D.they are easily available

What is included in the set of tools provided by the ear maker for self-servicing？A.Spare parts.

B.Cleaning brushes.

C.Measuring meters.

D.All kinds of spanners.

请帮忙给出每个问题的正确答案和分析，谢谢！