【简答题】Are you a social butterfly, or do you prefer being at the edge of a group of friends? Either way, your genes and evolution may play a major 1 , US researchers reported on Monday. While it may come as ...
【简答题】A.He and Elizabeth argued recently. B.He'd rather study in his own dormitory. C.He heard Elizabeth did poorly on the last test. D.He doesn't want to bother Elizabeth so late in the evening.