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图示电路中开关断开时的电容电压uc(O+)等于( )。
·2V
·3V
·4V
·0V<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/16337615112075e820b7e0af0475cb8cbbd977dfca3e0image7.png"
·2V
·3V
·4V
·0V<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/16337615112075e820b7e0af0475cb8cbbd977dfca3e0image7.png"
参考答案
