问题
单项选择题
沥青基原油的特点是密度较大，轻馏分少，胶质和沥青质多，其特性因数K（）。
A.＞12.7
B.12.1～12.7
C.11.5～12.1
D.＜11.5
答案
参考答案：D
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沥青基原油的特点是密度较大，轻馏分少，胶质和沥青质多，其特性因数K（）。
A.＞12.7
B.12.1～12.7
C.11.5～12.1
D.＜11.5
参考答案：D
Passage Three
Which of the following statements is NOT true according to the passage
A．Over 30 oil workers have been kidnapped this year in the Niger Delta region.
B．A group calling itself the Movement for the Niger Delta People has claimed responsibility for the current reported kidnapping.
C．The last kidnapping occurred last week when a German oil worker was taken away.
D．Nigeria produces the most crude oil in Africa.