The fire point of an oil is about ________ higher than the flash point

1.	The fire point of an oil is about ________ higher than the flash point.
A.	5-10<sup>o</sup>C
B.	5-20<sup>o</sup>C
C.	5-30<sup>o</sup>C
D.	5-40<sup>o</sup>C
Answer» E.

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