搜题

【单项选择题】

While you are working in a space，the fixed CO<sub>2</sub> system is accidentally activated．You should（）.

A、A.Secure the applicators to preserve the charge in the cylinders

B、B.Continue with your work as there is nothing you can do to stop the flow of CO2

C、C.Retreat to fresh air and ventilate the compartment before returning

D、D.Make sure all doors and vents are secured

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更多“While you are working in a space，the fixed CO<sub>2</sub> system is accidentally activated．You should（）.”相关的问题

第1题

[单选题] You use two user accounts for your computer: standard user and administrator. You log on to your computer as standard user but are unable to make advanced configuration changes. You need to make advanced configuration changes while you are logged on as a standard user. What should you do?（）

A、A B、B C、C D、D

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第2题

[单选题] You have a computer that runs Windows Vista. You connect to your company’s network by using a virtual private network (VPN) connection. You notice that when you establish the VPN connection, you are unable to access Internet Web sites. When you disconnect the VPN connection, you can access Internet Web sites. You need to access Internet Web sites while you are connected to the VPN connection. What should you do?（）

A、A B、B C、C D、D

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第3题

[单选题] 下面代码执行后，正确的输出结果是（）。

A、You are fired! You are hired! B、You are fired! You are fired! C、You are hired! You are hired! D、You are hired! Youarefired!

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第4题

[单选题] While you are turning the windlass over slowly , （）all the moving parts.

A、oil B、grease C、oiled D、greased

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第5题

[单选题] If a mooring line should part while you are tying up at a dock，you should make a temporary eye by tying a（）.

A、becket bend B、clove hitch C、bowline D、square knot

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第6题

[单选题] While underway in thick fog you are on watch and hear the cry“man overboard”.Which type of maneuver should you make（）.

A、Figure eight turn B、Round turn C、Racetrack turn D、Williamson turn

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第7题

[] You have a computer that runs Windows Vista. You create a virtual private network (VPN) connection between the computer and your company’s network. You notice that while the computer is connected through the VPN connection, users on the company network can access shared folders on the computer. You need to prevent network users from accessing your shared folders when you are connected to the company’s network by using the VPN connection. What should you do?（） You have a computer that runs Windows Vista. You create a virtual private network (VPN) connection between the computer and your company’s network. You notice that while the computer is connected through the VPN connection, users on the company network can access shared folders on the computer. You need to prevent network users from accessing your shared folders when you are connected to the compan

A、A.A B、B.B C、C.C D、D.D

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第8题

[] While maneuvering, you discover heavy smoke coming from the turbocharger casing, you should （）

A、A.check the air filter for dirt B、B.check for an exhaust leak C、C.check the cooling water temperature D、D.notify the bridge that you are going to shut the engine down

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第9题

[单选题] You have an SQL query that takes one minute to execute. You use the following code segment to execute the SQL query asynchronously.IAsyncResult ar = cmd.BeginExecuteReader（　）;You need to execute a method named Do Work（　） that takes one second to run while the SQL query is executing. DoWork（　） must run as many times as possible while the SQL query is executing. Which code segment should you use? （）

A、while（ar.AsyncWaitHandle==null）{DoWork（）；}dr=cmd.EndExecuteReader（ar）； B、while（!ar.IsCompleted）{DoWork（）；}dr=cmd.EndExecuteReader（ar）； C、while（Thread.CurrentThread.ThreadState==ThreadState.Running）{DoWork（）；}dr=cmd.EndExecuteReader（ar）； D、while（!ar.AsyncWaitHandle.WaitOne（））{DoWork（）；}dr=cmd.EndExecuteReader（ar）；

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第10题

[单选题] -（） -I’m the agent.

A、What are you? B、Where are you from? C、Who are you? D、What are you doing?

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