更多"Wilson got the first grant from the"的相关试题:
[单项选择]Who was first rescued from the sea
[填空题] Dogs were first domesticated from wolves at least 17,000 years ago, but perhaps as early as 150,000 years ago based upon recent genetic fossil and DNA (36)________. In this time, the dog has developed into hundreds of breeds with a great degree of (37)________. For example, heights at the shoulder range from just a few inches to roughly three feet, and colors range from white to black, with reds, grays, and browns (38) _______in tremendous (39)________.
Dogs are highly social animals and this (40)________in their overall behavioral system (41)_______ for their trainability, playfulness, and ability to fit into human (42)________and social situations. This has earned dogs a (43) ________position in the realm of interspecies relationships. (44)________________________ are thought to be reflections of the human idea of love and friendship, leading many dog owners to view their pets as full fledged family members. Dogs seem to view their human companions as members of their pack
