6. Some researchers believe that        a cure for AIDS will be found. (doubt)

一些研究者相信一定可以找到治療艾滋病的方法。

6. there is no doubt that考查doubt及同位語從句的用法 there is no doubt that..... 是毫無疑問的。 在該句型中，that后的從句為同位語從句，that只起連接作用，不做句子成分。

題目來源：高考丟分題英語 > Unit 1 Cultural relics

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