题目

下列说法中错误的是（） A . 我们周围的空间充满了电磁波 B . 在快速变化的电流周围会产生电磁波 C . 由c=λf可知，频率越高的电磁波传播得越快 D . 频率越高的电磁波波长越短 答案：C【1】What did Jack want to do one day?A. He wanted to borrow some books from Jim.B. He wanted to play with Jim.C. He wanted to buy some books.【2】Where did Jack want to read the books?A. In the reading room. B. At Jim’s home. C. At his own home.【3】How long did Jack want to borrow Jim’s books?A. Two weeks. B. Less than two weeks. C. More than two weeks.【4】Why didn’t Jack want to lend the brush to Jim?A. Because his brush is broken.B. Because he had lent it to others.C. Because Jim didn’t lend the books to him yesterday and this made him very angry.【5】What might happen after Jack’s words?A. Jim was happy. B. Jim was unhappy. C. Jim thanked Jack very much.