态度具有（）
One of your customers has decided to deploy location-based services in addition to existing wireless services. The customer requires that the additional access points to be deployed in monitor-only mode. The most likely reason for this requirement is that the customer has which of these existing wireless devices？（） 802.11b/g VoIP。 Data Collection。 802.11b and g clients。 RFID tag。
简述旱灾的主要成因及调节措施
反滤层
按同一生产厂家、同一等级、同一品种、同一批号且连续进场的水泥，袋装不超过（）为一批，散装不超过（）为一批，每批抽样不少于一次。 200t300t。 200t500t。 300t400t。 300t500t。
我国传统图案里以石榴象征下列哪一项（）。
