题目

Move over Psy. There’s a new viral music video on the Internet that’s getting millions of people dancing and laughing. Psy is a singer who created Gagnam Style, a music video which featured a catchy tune and interesting dance.     The new music video called The Fox (What does the fox say?) has recently gone viral. At  123 000 000 views, it may even catch up to Gagnam Style. The video asks the question, “What does the fox say?” It’s a good question. And it seems, at least according to the music video, there is no good answer.     Actors in the video dress up like the an一个力F分解为两个力F1和 F2,那么下列说法中错误的是（　　） A. F是物体实际受到的力 B. F1和 F2不是物体实际受到的力 C. 物体同时受到F1、F2和F三个力作用 D. F1和 F2共同作用的效果与F相同