建设社会主义文化强国，关键是（）。 ["增强全民族文化创造活力","振兴教育","民主建设"]
按广告作品的表现方式与表现形态，可以把广告分为（）、（）和（）
保持共产党员的先进性和纯洁性，需要做到（） ["坚定理想信念","牢记党的宗旨","积极努力工作","永葆政治本色"]
随机从卸煤流中截取中、下层煤样，可以不用取够6个子样。
Which one of the following actions would actually increase congestion on an Ethernet network?（） [" Increasing the number of collision domains."," Micro-segmenting the network."," Adding hubs for connectivity to the network."," Putting additional switches in the network."," Implementing VLANs in the network."]
项目施工准备阶段主要包括哪些内容？
