题目内容：
原油中最主要的元素是碳和氢化物。A．正确
B．错误
参考答案：
判断题：原油中最主要的元素是碳和氢化物。A．正确B．错误
- 题目分类：化工总控工考试
- 题目类型：判断题
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A．正确
B．错误
A．正确
B．错误
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