如图所示，L为带动线圈转动的摇把，图中表示指针可来回摆动的电流表，关于此工作原理图，下列说法正确的是

A．这是电动机的工作原理图

B．用该原理可制成手摇发电机，转动摇把L让线圈转起来，电流表的指针来回摆动

C．用该原理可制成手摇发电机，如果只拿掉电流表，其他电路连接不变，转动摇把L让线圈转动，线圈中会产生电流

D．用该原理制成的机器正常工作时，电能转化为机械能

小题1:Which of the four books above was published the latest?

A．The Help．

B．The Hunger Games．

C．Publication Manual．

D．Diary o f a Wimpy Kid．小题2:Suzanne Collins' book was published by         ．

A．Berkley Trade

B．Amer Psychological Assn

C．Scholastic Press

D．Amulet Books小题3:What is the list price of Josie Wags' book?

A．$9.

B．$14

C．$16

D．$28小题4:Which of the four books have something to do with science?

A．The Hunger Games and Publication Manual．

B．The Hunger Games and Diary of a Wimpy Kid ．

C．The Help and Publication Manual．

D．The Help and Diary of a Wimpy Kid．