The usual method of effectively applying foam on a fire is by （）.

A、spraying directly on the base of the fire

B、flowing the foam down a vertical surface

C、sweeping the fire before you with the foam

D、spraying directly on the surface of the fire

查看正确答案

更多“The usual method of effectively applying foam on a fire is by （）.”相关的问题

第1题

[单选题] One of the methods NOT usually allowed in cleaning up oil spills in the United States is （）.

A、skimmers B、straw C、dispersants D、sawdust

点击查看答案

第2题

[] You are developing a Windows Communication Foundation (WCF) service. You write a method named Submit that accepts messages of the type System.ServiceModel.Channels.Message. You need to process the body of the incoming messages multiple times in the method. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)（）

A、A. Use the GetBody method of the Message class to read the content of the messages. B、B. Use the CreateBufferedCopy method of the Message class to load the messages into memory. C、C. Use the WriteBodyContents method of the BodyWriter class to make a copy of the messages. D、D. Use the CreateMessage method of the MessageBuffer class to make a copy of the messages.

点击查看答案

第3题

[单选题] 开关舱的工作通常是由船员来做。（）

A、The work of opening and closing hatches is usually done by crew members. B、The work of opening and closing hatch covers is usually done by crew members. C、The work of opening hatch covers is usually done by crew members. D、The work of closing hatch covers is usually done by crew members.

点击查看答案

第4题

[单选题] The usual method of arranging a line on deck so that it will run out easily without kinking or fouling is（）.

A、coiling the line B、faking down the line C、flemishing the line D、racking the line

点击查看答案

第5题

[单选题] Which methods from the String and StringBuffer classes modify the object on which they are called？（）

A、The charAt（） method of the String class. B、The toUpperCase（） method of the String class. C、The replace（） method of the String class. D、The reverse（） method of the StringBuffer class. E、The length（） method of the StringBuffer class.

点击查看答案

第6题

[单选题] Which of the following is not true of Britain.s foreign trade?（）

A、The value of Britain.s exports of goods usually exceeds the value of its imports. B、The value of Britain.s imports of goods usually exceeds the value of its exports. C、Manufactured goods now account for about 85%of British imports and about 80%of its exports. D、Most of the United Kingdom.s trade is with other developed countries,especially other members of the European Union.