查询燃烧面积可以询问和查阅（）。
A、知情人
B、灭火救援预案
C、显示设备
D、技术图纸
E、规章制度
参考答案：A, B, C, D
---Excuse me, could you tell me _______?
---Sorry, sir. I wasn't there at that time.
A. how did the accident happen
B. how the accident happened
C. how does the accident happen
何谓十二指肠淤滞症？
