We can infer from the text that robots now _________ . [A] are clever enough to make good soups [B] know the rules for working with humans [C] cannot work well when kept behind gates [D] do not understand human expressions of pain
【单选题】Searching the Web with Yahoo! Yahoo!, like the Web itself, is too large to be explored entirely link by link. However, with over half a million sites divided into more than 25, 000 categories, Yahoo! ...