（3）在 RFID标签中有一个“安全位”（security Bit），通过 该位的。和1状态交替变化以标示书本是否被借 出，VTLS和Libramation就是采用了这种方案。
基于70个网页-相关网页
美国邮政署周三上午宣布：“由于北极地区遭遇严寒侵袭，出于对美国邮政员工安全的担忧，邮政部门将在1月30日暂停3位数邮政编码地区的邮递服务。”
"Due to this arctic outbreak and concerns for the safety of USPS employees," USPS announced Wednesday morning," the Postal Service is suspending delivery Jan.30 in some 3-digit ZIP Code locations."
“传统的规则是待在原地更安全，但这一规则已发生了根本性的颠覆。”一位猎头表示。
"The traditional rule was it's safer to stay where you are, but that's been fundamentally inverted," says one headhunter.
应用推荐