颈后三角区分为______、______。
参考答案：锁骨上三角‖枕三角
假性神经瘤
用所给词的适当形式填空
1. Do you know the girl ________ (name) Betty?
2. There are many ________ (mouse) in the old buildings.
3. How about ________ (feed) a pet cat in your house?
4.I think swimming is much ________ (interesting) than hiking.
5. Dogs are too difficult ________ (take) care of.
