◎ 题干
—The problem is very difficult. I'm afraid you can't work it out now.
        I fail this time, I will try it again.
A.Even ifB.SinceC.As ifD.Though
◎ 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“—The problem is very difficult. I'm afraid you can't work it out now.—I fail this time, I will try it again.A.Even ifB.SinceC.As ifD.Though…”主要考查了你对  【并列连词】【从属连词】  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。