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题库 / OG2017V-SC-189
Using digital enhancements of skull fragments from five prehistoric hominids dating to more than 350,000 years ago, anthropologists argue that these human ancestors probably had hearing similar to that of people today.
anthropologists argue that these human ancestors
anthropologists argue, so these human ancestors
anthropologists argue, these human ancestors
these human ancestors, anthropologists argue,
these human ancestors are argued by anthropologists to have
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Using digital enhancements of skull fragments 的只能是 anthropologist，排除D、E。
B、C相当于做插入语，排除。
anthropologists can use, the skull fragement can not use.