The System Administrator wants to do a backup of the HMC and notices that there are two options on the HMC menu: Backup Critical Console data and Save Upgrade Data. Which of the following best describes the differences between the two options?（） Both options back up user and partition profile data. Only the Backup Critical Console Data backs up TCP/IP settings or preferences。 Both options back up partition profile information. Only the Backup Critical Console Data backs up service function settings, such as Inventory Scout, Service Agent, and Service Focal Point。 The Backup Critical Console Data should be performed just before the HMC software update operation. The Save Upgrade Data should be performed each time configuration changes are made to the system or the HMC。 The Save Upgrade Data should be performed just before the HMC software update operation. The Backup Critical Console Data should be performed each time configuration changes are made to the system or the HMC。
充装秤台面上需放置（），严禁钢瓶与秤台面直接接触。 钢板；。 铜板；。 防静电橡胶板；。 铁板。
120阀属于二压力机构系统。
受教育程度的提高可使父母对生育子女的注意力集中在什么上（） 孩子能否健康成长。 孩子能否传宗接代。 孩子的未来发展和事业成就。 孩子能否受到良好的教育。 孩子能否成为防老养老的经济保证。
Which of the following are policies applied to discount promotions？（） If multiple discounts could apply to a given product/item， the promotion with the highest priority will be chosen.。 If multiple discounts could apply to a given product/item， the promotion with the largest amount off will be chosen.。 If more than one order level discount could apply to an order， the discount with the highest priority will bechosen.。 If more than one order level discount could apply to an order， the discount with the largest amount off will be chosen.。 If discounted shipping and another type of order level discount could apply to the same order， both are applied.。
混凝土工程冬期施工采用蒸汽养护时，应优先选用（）。
