题目内容：
38. Many Europeans _______the continent of Africa in the 19th century to find out what it was like. A) expended B) extended
C) expired D) explored
参考答案：
选择题：38. Many Europeans _______the continent of Africa
- 题目分类：西安石油大学-大学英语2
- 题目类型：选择题
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A) expended B) extended
C) expired D) explored