[Retracted] Preservice Training Strategies and Guarantee Mechanisms for Primary and Secondary School Teachers in the Development of Smart Cities by the Internet of Things

<div>Data analysis and processing using SPSS 19.0 software.</div>

Security and Communication Networks

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Figure 6

Figure 6: [Retracted] Preservice Training Strategies and Guarantee Mechanisms for Primary and Secondary School Teachers in the Development of Smart Cities by the Internet of Things 

Figure 6 | [Retracted] Preservice Training Strategies and Guarantee Mechanisms for Primary and Secondary School Teachers in the Development of Smart Cities by the Internet of Things 