题目

Every year in the U.S., April 12 is celebrated as the National Drop Everything and Read Day. It is a day to celebrate books and reading. And it’s also the birthday of the author Beverly Cleary. Beverly Cleary is a f1 ． writer of children’s books.  Some of her best-known books areRamona the Pest ,the Mouse and the Motorcycle ,Henry Huggins andDear Mr. Henshaw . Ms. Cleary was slow to learn to read herself. She was born in 1916, and found the books of the time boring. Later on, Ms. Cleary became a librarian(图书管理员 ). One day a student asked her where he could find books about如图所示的几种与电和磁有关的器件，工作时应用了电磁感应原理的是A.风力发电机B.电风扇C.电饭锅D.电磁起重机