单项选择题


A．looked into
B．looked up
C．looked out of
D．looked at
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单项选择题
Which of the following is NOT true
A．Crude oil is found below land and water.
B．Crude oil is always found a few hundred feet below the surface.
C．Pumping and pressure force crude oil to the surface.
D．A variety of petroleum products is obtained from crude oil.
单项选择题
Which of the following is NOT listed as a light oil
A．Gasoline.
B．Kerosine.
C．Distillate oil.
D．Diesel oil.
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