这是一道改错题,句子中有一处错误:Technological and design advances are making highways safer, as recent years have seen increased emphasis in research on the needs of older drivers.
Anthropologists have used these obvious differences to distinguish races, in an effort to catalog human variation. 请问这句中的"distinguish races"是词典中的哪一个意思?verb1.[ with obj .] recognize or treat ( someone or something ) as different 识别;区分The child is perfectly ...