Cracker Jacks has been gamifying its snack food by putting a small prize inside for more than 100 years, he adds, and the turn-ofthe- century steel magnate ( ' , 巨头) Charles Schwab is said to have often come into his factory and written the number of tons of steel produced on the past shift on the factory floor, thus motivating the next shift of workers to beat the previous one.

出自-2016年12月阅读原文

Cracker Jacks has been "gamifying" its snack food by putting a small prize inside for more than 100 years, he adds, and the turn-of-the-century steel magnate (巨头 Charles Schwab is said to have often come into his factory and written the number of tons of

2016年12月四级真题（第三套）阅读 Section B