题目

Every people has its own special words and expressions like the American expression “on the wagon” It means a person who no longer drinks whisky, beer or other kinds of alcoholic drinks. The “wagon” is a water wagon. In other words, a drinker has decided to change from alcohol to water. An Oklahoma newspaper wrote about a man who had a history of heavy drinking on America’s Fourth of July holiday. Said the newspaper, “We believe that his experience had lifted him onto the water wagon, but he was even drunker the next Fourth of July.” Why do people decided to go on the wagon? Wel观察下列数列的规律，选择括号中应填哪个选项？10，13，16，19，(     )，25．A.21B.22C.23D.24