单选题Diesel fuel is relatively safe to handle due to its low volatility, but the fumes will self-ignite and continue to burn steadily if the fuel is heated to the （）.Aflash pointBauto-ignition pointCvolatility pointDupper explosive limit
单选题
Diesel fuel is relatively safe to handle due to its low volatility, but the fumes will self-ignite and continue to burn steadily if the fuel is heated to the （）.
A
flash point
B
auto-ignition point
C
volatility point
D
upper explosive limit
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