Possible phase relationships between voltage and current in an alternating current circuit include which of the following conditions?（）<br>A:Current and voltage may be in phase<br>B:Current may lead the voltage<br>C:Current may lag the voltage<br>D:All of the above

Possible phase relationships between voltage and current in an alternating current circuit include which of the following conditions?（）
A:Current and voltage may be in phase
B:Current may lead the voltage
C:Current may lag the voltage
D:All of the above

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