A:该电子秤中R2阻值为6Ω
B:当电子秤示数为2kg时,电路中的电流为0.3A
C:电源电压为6V
D:电路中的电流为0.3A时,R2消耗电功率是0.45W
完形填空。
1! My name 2Alice. I'm fourteen 3 . I like playing Volleyball 4 going to the cinema. My favourite5 is Christmas.
This is my friend Joe. He's fifteen. He 6 like playing sport. He can7 English and he likes Maths. He wants8 everything about it.
This is my cousin. She is thirteen. 9 favourite sport is skating and she can skate very 10 . She likes music. She says it's exciting.
课文《孙权劝学》中,吕蒙才略惊人长进的原因是什么?