某企业生产甲材料，年需要量为100千克，如果自制，单位变动成本20元，而且需要购买生产设备，每年发生专属固定费用2000元；如果外购，单价为30元。企业应选择（）。 ["自制50千克，外购50千克","外购","自制30千克，外购70千克","自制40千克，外购60千克"]
在确定输电线路的传输容量时，应（）。 ["为目前最大负荷电流","考虑2、3年的发展远景","考虑5-10年的发展远景","考虑10-30年的发展远景"]
To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus？（） [" to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link"," to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link"," to two core switches from redundant distribution switches connected with Layer 2 link"," to two core switches from redundant distribution switches connected with Layer 3 link"," to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO"]
下列各项固定资产不应计提折旧的是（）。 ["季节性停用的大型设备","融资租入固定资产","已提足折旧仍在使用的大型设备","经营出租的固定资产"]
历史上的印度一直是一个统一的国家。
护患关系的道德规范是什么
