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题目内容
（兰州大学-大学英语3）
(4分)The Oregon Trail went through the South Pass, ___________ in 1842.
A. where was gold discovered
B. it was where gold was discovered
C. discovered where gold was
D. where gold was discovered
A. where was gold discovered
B. it was where gold was discovered
C. discovered where gold was
D. where gold was discovered
参考答案