试题内容

As a key way to achieve bidirectional mapping，dynamic interaction，and real-time connection between virtual and real，（）can map the properties，structure，state，performance，function，and behavior of physical entities and systems to the virtual world，forming a high fidelity dynamic multidimensional，multi-scale，and multi physical quantity mode1.
A．Cloud computing
B．Digital twins
C．Artificial intelligence
D．Block chain
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