And that quest has brought ( ) benefits that improve our lives in countless ways.

(单选题)This new policy proved effective, leading to ( ) increase (单选题)Poor schooling was the ( ) of the unemployment problem. (单选题)One's economic condition often ( ) his or her way of life (单选题)These are defensive behavior patterns which ( ) from our (单选题)If you want to keep healthy, you should ( ) the foods you (单选题)This table is strong and ( ). (单选题)There's been a lot of contention in the last couple of weeks (单选题)The dentist has decided to ( ) her bad tooth. (单选题)It took me exactly a week to ( ) the work. (单选题)With the U.S. government amassing growing amounts of ( )