单项选择题

If your vessel bums 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 18 knots?（）

A.1382 tons
B.1561 tons
C.1600 tons
D.1637 tons

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单项选择题

Which of the following statements is correct concerning the “flash point ” of a liquid?（）

A.It is lower than the ignition temperature
B.It is the temperature at which a substance will spontaneously ignite
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D.It is the temperature at which the released vapors will fall within the explosive range

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