第31题: [单项选择]Very few people could understand the lecture the professor delivered because its subject was very ______. A. intriguing B. indefinite C. obscure D. dubious 参考答案:C 答案解析:[译文]很少有人能听懂教授的讲座,因为其主题很晦涩难懂。
[题解]形容词辨义:intriguing“能激起好奇心的,迷人的”;indefinite“无限期的;不明确的”;obscure“模糊不清的,