单词拼写

1. They lived in the _______ (北方的) part of China.

2. The students ran in all d_______ when they heard the shouts.

3. The girl went to school in a h_______ without breakfast.

4. The child could not hide his _______ (激动) when he came back from Beijing.

5. He had many interesting _______ (经历) while traveling in the USA.

容易形成腰大肌脓肿的结核部位是（）

A.颈椎

B.胸椎

C.腰椎

D.腰骶椎

E.骶尾椎