问题
判断题
电气设备短路时,电流的热效应有可能使设备烧毁及损坏绝缘。
答案
参考答案:对
电气设备短路时,电流的热效应有可能使设备烧毁及损坏绝缘。
参考答案:对
选词并用其正确的形式完成句子。每词限填一次。
小题2:We live in________with our neighbours 小题3:________, Helen’s bike was broken. 小题4:The window was broken. Try to________who broke it. 小题5:Tom lives________to school in our class,so he always walks to school. |