体育之所以是一种文化是因为：（） ["体育是人类也只有人类才能创造出来的一种社会活动","体育是人类也只有人类才能创造出来的一种精神活动","体育具备文化的各种特征","体育运动具有内在的价值观念、意识形态和行为规范等"]
You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？ （） [" The switches are not the same model"," You are not using the correct SFP"," You are not using correct optical media converters"," Configuration should be modified， because the distance is longer"]
试述难加工材料的加工特点？
设计美学是如何产生的？
宪法明确规定，非公有制经济是我国社会主义市场经济的重要组成部分。
电子化政府。
