The identity of hominid remains found in a cave in the Altai Mountains was______ until Paabo and his colleagues ended the specul

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问题 The identity of hominid remains found in a cave in the Altai Mountains was______ until Paabo and his colleagues ended the speculation by showing that DNA sequences indicated the bones belonged to Neanderthals.

选项 A、extraneous
B、conjectural
C、improbable
D、demonstrable
E、consistent

答案B

解析 方程等号:until=before时间对比,反义重复;end结束,取反;两次取反后取同。强词和对应:在阿尔泰山的洞穴里发现了原始人类残骸,这些人类残骸的身份是空格的。空格后面说直到Paabo和他的同事研究出骨头的DNA才结束了这种猜测。the bones和hominid remains对应,until和end时间对比,两次取反,空格应填入与speculation同方向的词。extraneous不重要的,conjectural基于猜测的,improbable不可能的,demonstrable可证明的,consistent连贯的。答案选B。
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