开放性颅脑损伤在抗生素治疗下，清创术最迟可延迟至以下时间内进行
A．12hB．24hC．36hD．48hE．72h
参考答案：E
The soft music sounds ____. We are all listening ____. [ ]
A. beautiful; carefully
B. beautifully; carefully
C. moving; careful
D. happily; careful
化学和容积控制系统﹝压水堆﹞ chemical and volume control system
