皮肤从外到内由下列哪几层组成：（）
A.表皮真皮皮下组织
B.基底层棘层角质层
C.皮下组织真皮表皮
D.胞膜层透明层致密层
参考答案：A
根据句意及首字母，填入适当的单词。
1. She often b______ her sister on Sundays.
2. What's she doing for v______?
3. I'm going c______ with my parents.
4. They're r______ at home this weekend.
5. Tom is playing football n______ week.
判断故障时，若测试ODF架上的法兰盘，损耗为20dB左右，即判断为（）的故障，需要更换一个（）后业务才会恢复。
