◎ 题干
China _________ a new oil field near Bo Sea five years ago.
[     ]
A. invented
B. discovered
C. has invented
D. has discovered
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“China _________ a new oil field near Bo Sea five years ago. [ ]A. invented B. discovered C. has invented D. has discovered …”主要考查了你对  【实义动词】【一般过去时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。