The lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition is called ______．
A. Explosive range
B. Flash point
C. Ignition temperature
D. Combustion temperature
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The deck water seal of the inert gas system ______．
A. Cools the inert gas and prevents soot from entering the cargo tanks
B. Acts as an emergency shutdown when inlet pressures exceed the safe working pressure
C. Prevents the backflow of hydrocarbon gasses into nonhazardous areas
D. Relieves sudden large overpressures in the system
尾翼外表面蒙皮埋头螺钉头，允许凸出、凹下或偏斜蒙皮至()mm。
A. 0.3
B. 0.5
C. 0.2
D. 0.1
以下属蒿芩清胆汤辨证要点的有()。
A. 舌红苔腻
B. 脉弦滑数
C. 吐酸苦水
D. 脘腹胀痛
E. 寒热如疟
F. 寒重热轻
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