The country signed a/an ______ contract with America with an aim to make good use of their natural resources and capital.

A．There are too many pages or hyperlinks on the Internet, so people usually use search engine to find a certain site.
B．More than 8 search engines are accused of selling their search engine spots by Commercial Alert.
C．The headquarters of Commercial Alert is in Portland Oregon.
D．The search engines are Web guides.

A．enjoys general popularity
B．represents modern style
C．means something that brings people joy
D．symbolizes the aristocracy of Victorians