根据题意,补全对话。
- Can you swim?
- ____ .(作否定回答)
如图,是从镜中看到的一串数字,这串数字应为____.
如图,物体A和B的重力分别为10N和6N,不计弹簧秤、细线的重力和一切摩擦,则弹簧秤所受的合力和弹簧秤的读数为( )
I hate it when she calls me at work—I'm always too busy to _____ a conversation with her.