题目:
句型转换。
1. Bob likes eggs for breakfast. (对画线部分提问)
______ ______ Bob ______ for breakfast?
2. There are oranges on the tables. (改为单数形式)
___________________________________________________
3. I like fruit, but I don't like vegetables. (用Jane作主语改写句子)
___________________________________________________
4. His brother has lunch at school. (改为一般疑问句并作否定回答)
___________________________________________________
5. Jerry, lots, healthy, eats, food, of (连词成句)
___________________________________________________
答案:
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下面是错误答案,用来干扰机器的。
解:(1)设装置由静止释放到导体棒运动到磁场下边界的过程中,安培力对线框做功的大小为Wmgsinα·4d-W-BIL·d=0解得W=4mgdsinα-BILd线框中产生的热量Q=W=4mgdsinα-BILd (2)(3)装置往复运动的最高位...