现代物流的主要特征是物流的（）。 ["自动化","机械化","信息化","网络化"]
人类的性心理有什么特点？
在word的编辑状态下，格式刷可以复制（）。 ["段落的格式和内容","段落和文字的格式与内容","文字的格式和内容","段落和文字的格式"]
A Cisco Aironet 1020 controller-based access point has been connected to a Catalyst 3550-24 PWRSwitch. However， when it is powered up， the access point fails. What has caused this problem？（） ["access point does not support 802.11h","incorrect switch power supply","switch port is not enabled","switch does not support 802.3af","access point has not been initialized with the primary controller"]
种群中个体分布呈均匀分布的原因有（） ["种内竞争","优势种成均匀分布","地形均匀分布","自毒现象","林地内光斑镶嵌"]
数据库营销的本质是提供了一个关于市场行情和顾客信息的数据库，它主要在于强调运用市场营销策略的目的性和结果，即（）和（）。
