【简答题】Number sense is not the ability to count. It is the ability to recognize a 1 in number. Human beings are born with this ability. 2 , experiments show that many animals are, too. For example, many ...
【单选题】Road courtesy is not only good manners, but good sense, too. It takes the most level headed and good-tempered of drivers to resist the temptation to get their revenge when subjected to uncivilized beh...