【单选题】听力原文: Largely because 0f rapid growth in Asia, world oil consumption is growing faster than production. Supply short fall, combined with sharply higher oil prices, is spurring the construction of new ...
A.
the rapid growth in world oil consumption
B.
the rise of China and India
C.
the construction of new pipelines is becoming more difficult
【单选题】The oil components including polar compounds formed as a result of oxidation of some oil fractions in the marine environment dissolving in seawater defines ______.