【简答题】A.It has been in the cafeteria for several weeks. B.Its colors aren't very bright. C.Both speakers thing it looks bad in the cafeteria. D.The speakers selected it for the cafeteria.
【简答题】实验目的: § 1 、认识 RFID 的 分 类 § 2 、了解低频、高频和超高频 RFID 的特点 § 3 、讨论 RFID 在我们现实生活中可以用哪些典型应用? 实验内容: § 1 、现场观摩各种不同类型的 RFID 设备,包括 TAG 、读写器和天线,并作相应记录; § 2 、记录不同频段 RFID 的主要特性及其主要应用环境; § 3 、利用 Internet ,搜索 RFID 有哪些主要...
【简答题】A.Mary forgot about the seminar. B.Mary has been ill for several weeks. C.Mary wasn't able to attend the seminar. D.Mary hadn't planned to attend the seminar.