简述智慧交通的概念,列举支撑的关键技术（点到即可，至少需要6点）
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A lot of circuits may be entirely in series or in parallel.
A. 对
B. 错
The current is the same throughout the circuit in parallel.
A. 对
B. 错
The bulb with greater resistance has less current in the circuit in series.
A. 对
B. 错
The current is divided in parallel circuit.
A. 对
B. 错
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