某电灯的电阻r=50Ω,两端电压U=10V,如该电灯工作60s,则它消耗的电能W=()
参考答案:120J
阅读理解。
My name is Windy. I'm thirteen years old. I like sports very much. I have a basketball and a football at
home. They are under my desk. I often (经常) play balls with my friends. I like vegetables. I have tomatoes
and carrots for lunch. I like ice cream, too. My parents are doctors They like watching soccer games on TV.
1. What does Windy like?
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2. What does she often do with his friends?
3. What are her parents?
4. What do they like to do?
5. What does she often have for lunch?
太白丸功效与作用