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S7 Program对象包含源文件（Source）、块（Blocks）和（）。
- A、数据包（Systemdata）
- B、站（Station）
- C、变量表（VAT）
- D、符号表（Symbols）
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更多 “S7 Program对象包含源文件（Source）、块（Blocks）和（）。A、数据包（Systemdata）B、站（Station）C、变量表（VAT）D、符号表（Symbols）” 相关考题
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S7Program对象包含源文件(Source)、块(Blocks)和()。
A、数据包(Systemdata)B、站(Station)C、变量表(VAT)D、符号表(Symbols)
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S7 Program对象包含源文件（Source）、块（Blocks）和（）。A、数据包（System data）B、站（Station）C、变量表（VAT）D、符号表（Symbols）
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在Java语 言中，下面描述正确的是（）。 A、如某公有接口被声明在一个源文件中，则接口必须和源文件具有相同的名字B、如源文件包含import语句，则语句必须是第一个非空行C、如源文件包含package语句，则语句必须是第一个非空行，非注释行D、如源文件包含main（），则语句必须是第一个非空行
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防火墙通常阻止的数据包包括（）A、来自未授权的源地址且目的地址为防火墙地址的所有入站数据包{除Email传递等特殊用处的端口外）B、源地址是内部网络地址的所有人站数据包C、所有ICMP类型的入站数据包如D、来自未授权的源地址，包含SNMP的所有入站数据包E、包含源路由的所有入站和出站数据包
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单选题You are creating the SAL_INFO data block on the EMP_QUERY form. The SALARY field should only be populated if the logged-on user is a manager. Since this query could potentially return a large amount of records, you have created a stored procedure which uses a ref cursor on which to base the data block. How would you create the data block?（）A
Click the Data Blocks node in the Object Navigator and click the create button. Choose to build the data block manually. Enter the procedure name in the Query Data Source Columns property and the procedure code in the Query Data Source Arguments property. B
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Select the Data Blocks node in the Object Navigator and click the Create button. Choose to build the data block manually, alter the Query Data Source Type property to 'Ref cursor', and enter the name of the procedure in the Query Data Source Name property. D
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考题
单选题防火墙不阻止下列哪种网络数据包？（）A
来自未授权的源地址且目的地址为防火墙地址的所有入站数据包B
源地址是内部网络地址的所有入站数据包C
包含ICMP请求的所有入站数据包D
来自授权的源地址
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