The identity of hominid remains found in a cave in the Altai Mountains was________until Paabo and his colleagues ended the specu

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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 两句话的逻辑连接词为until(在……以前),引导时间对比.对比前后取反。前半句指出,阿尔泰山脉洞穴中发现的原始人类遗骸的身份是________的,之后说帕博和他的同事结束了猜测。一件事情能够结束的前提是它必须存在过、开始过,所以空格处应该是说这个身份一直是猜测的,选B项conjectural(猜测的)。
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