不是必需的

• In is not required , but it does give you a more friendly workspace
  此插件不是必需的，不过它的确使得工作区更为友好。
• This option is not necessary if you are authenticating using windows credentials
  )进行身份验证，则此选项不是必需的。
• About a project you re undertaking , this knowledge is not be a requirement
  有一定的了解） ，这些知识却不是必需的。
• The type reference is formed as follows items in brackets are not required
  类型引用的形式如下（括号中的项不是必需的） ：
• Although the semicolon is not required , using it is considered a good practice
  虽然分号不是必需的，但使用它是一种很好的习惯。
• If a given service is not required , then you can disable its listening ports
  如果给定的服务不是必需的，则可以禁用其侦听端口。
• Experience with db2 and python would be helpful , but is not essential
  有db2和python经验对学习本教程非常有帮助，但不是必需的。
• However , the mnemonics are not nece ary for a complete automated analysis
  不过，对于一个完全自动化分析来说，助记码不是必需的。
• Familiarization with rational tools would be an advantage , but is not required
  熟悉rational工具也是很有帮助的，但这不是必需的。
• However , the mnemonics are not necessary for a complete automated analysis
  不过，对于一个完全自动化分析来说，助记码不是必需的。