【单选题】
First (reported by) Spanish explorers in 1796, (the asphalt) inCalifornia’s LaBrea Tar Pit was mined (commercial) for (many) years.
A、reported by
B.the asphalt
C.commercial
D.many
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根据网考网移动考试中心的统计,该试题:
7%的考友选择了A选项
17%的考友选择了B选项
56%的考友选择了C选项
20%的考友选择了D选项