OK, if you say so, Professor. And since you're in a scientific mood, how about answering today's quiz question. Which type of joint can you crack? Is it … a) fibrous? b) cartilaginous? Or c) synovial?
好吧,随你怎么说吧,大教授。既然你想谈论科学,那么就来回答一下今天的测试题吧。人体的哪一个关节可以被掰响?是a)纤维性关节? b)软性关节? c)滑液性关节?