题目内容：
第(39)题应填__________ 参考答案：
答案解析：
单选题：第(39)题应填__________
- 题目分类：英语六级
- 题目类型：单选题
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第(38)题应填__________
第(38)题应填__________
Oil fields are regions underlain by one or more oil pools w
Oil fields are regions underlain by one or more oil pools which are valuable u
第(30)题__________
第(30)题__________
The relative pronoun "which" in the last paragraph (Line 5
The relative pronoun "which" in the last paragraph (Line 5 ) refers toA．theorie
Questions are based on the following passage.There he was A
Questions are based on the following passage.There he was America's first Pres