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【简答题】
要把一额定电压为12V，电阻为240Ω的灯泡接到36V的电源中使用，问应串联的电阻应为 Ω。
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【简答题】A nine-year-old kid was sitting at his desk when suddenly there was a puddle（水潭、泥坑） between his feet and the front of his trousers was wet．He thought his heart was going to stop because he couldn't po...
【简答题】A nine-year-old kid was sitting at his desk when suddenly there was a puddle (水坑) between his feet and the front of his trousers was wet. He thought his heart was going to stop because he couldn’t pos...
【简答题】A nine-year-old kid was sitting at his desk when suddenly there was a puddle （/JC^C）between his feet and the front of his trousers was wet．He thought his heart was going to stop because he couldn't po...
【简答题】阅读理解。 A nine-year-old kid was sitting at his desk when suddenly there was a puddle (/JC^C)between his feet and the front of his trousers was wet. He thought his heart was going to stop because he coul...
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