对肩锁关节的叙述正确的是（）
A、属于平面关节
B、属于鞍状关节
C、有肩锁韧带加固
D、有喙锁韧带加固
参考答案：A, C, D
In Sweden,people don't need to____too much money on presents,instead, making a meal is enough. [ ]
A. spend
B. take
C. pay
D. cost
面向连接与面向无连接的区别？
