Analysis of general properties of crude oil does not include ( ).

The following petroleum commodities incorrectly classified by wax content are ( ).

The relative density of oil is generally ( ).

Oil with a sulfur content higher than ( ) is commonly referred to as high sulfur oil.

After distillation of crude oil, the original sulfide will be more concentrated in the ( ) fraction.

The established presence of sulfur in crude oil does not include ( ).

The distribution of sulfur in crude oil, the following correct is ( ).

Crudes with less than 0.5% sulfur are in the ( ) category.

The following statement is correct ( ).

The magnitude of the vapor pressure is independent of ( ).

At room temperature, when the vapor pressure is less than the system pressure, the substance is ( ).

At room temperature, when the vapor pressure is greater than the system pressure, the substance is ( ).

Of the following oils, the least dense is ( ).

The relative density of oil products is usually based on ( ) of water.

Of the following oils, the densest is ( ).