单选题The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the （）Aflash pointBfire pointCupper explosive limitDlower explosive limit
单选题
The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the （）
A
flash point
B
fire point
C
upper explosive limit
D
lower explosive limit
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