When sailing ill cold zones,_______should be drained of water.

A．the ventilation pipe

B．the water line for fire fighting on the deck

C．the fuel oil line

D．the water supplying line in bath room

[单选题]You are sailing south on the Intracoastal Waterway（ICW）when you sight a green can buoy with a yellow square painted on it.Which of the following is TRUE（）.A . You should pass the buoy close aboard on either sideB . The buoy marks the end of the ICW i

[单选题]While sailing in ballast under normal weather and sea condition, the basic parameter which is used to restrict the fuel injection of main engine isA．the exhaust temperatureB．the speed of main engineC．the turbine rotation speedD．the power of main engi

[试题]A．n interesting project called Blue Zones is recording the lifestyle. secrets of the communities with the highest, hest concentrations of centenarians in the world.The people in the five regions in Europe, Latin America,Asia and the US that live to be

[单选题]In the author’s opinion, employees should _____.［A］ invest in company stock to show loyalty to their employer［B］ get out of their own company’s stock［C］ wait for some time before disposing of their stock［D］ give trust to a particular company’s stock

[单选题]To have an interview for a job，one should________．A．wear expensive clothesB．be clean and tidyC．be polite and gentlemanly(or gentlewomanly)D．be both B and C

[单选题]JohnDeweybelievedthateducationshouldbeapreparationforlife,thatapersonlearnsbydoing,andthatteachingmust________thecuriosityandcreativityofchildren.A．)seekB)stimulateC)shapeD)secure

[单选题]The exhaust gases for a new engine should be （） when the engine operates under full load.A . smokyB . a little bit denseC . visibleD . almost invisible

[单选题]Once a fire is detected the engine should be slowed downOn no account （）.A . the trunking should be opened upB . should the trunking be opened upC . the trunking should not be opened upD . should the trunking not be opened u

[单选题]During （）, the starting air valves should be closed to prevent the engine from turning.A . overhaulB . runningC . blowing downD . All of the above are correct

[主观题]Themostbasicreasonwhydialectsshouldbepreservedisthatlanguagehelpsto______acultureA．)retainB)relateC)remarkD)review