The order to enter the lifeboats will be given from the（）.

[单选题]On open lifeboats，the purpose of the wire stretched between the davit heads is to（）.A . keep the movement of the davits at the same speedB . keep the davits from slipping when they are in the stowed positionC . prevent vibration during lowering of th

[单选题]Aluminum lifeboats are subject to damage by electrolytic corrosion (the aluminum being eaten away). In working around boats of aluminum you must be very careful（）.A . to keep the boats covered at all timesB . not to leave steel or iron tools lying in

[单选题]Stretchers are fitted in lifeboats to provide a（）.A . place for people to lie downB . means for rigging the sailC . place for rowers to brace their feetD . suitable means for water to drain below the footing

[单选题]The lifeboats and liferafts were（）with the provisions of the regulations annexed to the Convention.A . put on boardB . installedC . fittedD . equipped

[单选题]Most covered lifeboats will right themselves after capsizing if the（）.A . passengers are strapped to their seatsB . fuel tanks are not less than half fullC . sea anchor is deployed to windwardD . lower ballast tanks are filled with water

[单选题]（ ） are those made out to consignees with the words“to the order of ×××”or

[单选题]（ ） are those made out to consignees with the words“to the order of ×××”or

[单选题]E．nter键是( )。A．输入键B．回车换行键C．空格键D．换档键

[单选题]E．nter键是( )。A．输入键B．回车换行键C．空格键D．换档键

[单选题]“Enter”键又称（）。A . 回车键B . 空格键C . 删除键D . 退格键