气管内导管留置的时间不宜超过( )
A．36～48小时
B．24～36小时
C．48～72小时
D．12～24小时
E．72～96小时
参考答案：C
根据句意及首字母提示完成单词。
1. My shoes are too old(旧的).1 want to b_______ new shoes.
2. We have many jackets at a very good p_______.
3. I'm s_______ I can't play volleyball with you.
4. Let me h_______ a look at your new sweater.
5. My aunt s_______ books in a bookstore. She is a bookseller(售书员).
脚手架基础经验收合格后，应按施工组织设计的要求放线定位。（）
