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)
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)
参考答案和解析
D
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