— Do you agree that computers are able to do all our jobs in the future?
— Are you kidding?
A:should
B:must
C:can
已知圆周率π=3.1415926…,将π精确到千分位的结果是( )
①礼仪规范与社会政治、经济、文化相适应 ②对传统礼仪要取其精华、去其糟粕
③要与时俱进,理解和接纳礼仪的变化 ④要时移礼易,淡化礼仪