罗伯特.希斯把专业技术人员突发事件管理决策分为以下（）模式。
A.事前决策模式
B.事中决策模式
C.事后决策模式
D.以上都对
参考答案：A, B
_____but he still couldn’t understand the logical connection of the two subjects.
A．Having told many times
B．Having been told many times
C．He was told many times
D．Many times as he was told
消防员避火防护服的主要材料包括：阻燃纯棉复合铝箔布、阻燃粘胶毡、碳纤维毡、耐高温防、火面料阻燃纯棉布等。
