判断正误True or False：座舱高度大于8500英尺时，激活＇禁止吸烟＇和＇座椅安全带＇信号是增压系统的一个保护性功能。With cabin altitude greater than 10000 ft, the activation of ＇No smoking’ and ＇Seat belt＇ signs is a protective function of the pressurization system.