The lowest temperature at which a liquid gives off enough vapor to ignite in the presence of an ignition source is called its （）.<br>A:boiling point<br>B:flash point<br>C:viscosity point<br>D:toxic point

The lowest temperature at which a liquid gives off enough vapor to ignite in the presence of an ignition source is called its （）.
A:boiling point
B:flash point
C:viscosity point
D:toxic point

出自：海船船员证

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