【简答题】It seems that there’s a good reason why dogs are always seen as man’s best friend. Scientists have found that dogs are the only animals that can read emotion(情感)in faces much like humans. The finding ...
【简答题】The dog has often been an unselfish friend to man. It is always grateful to its . It helps man in many ways. Certain breeds of dogs are used in criminal investigations. They are trained to sniff...