两台变比相同的电流互感器，当一次线圈串联，二次线圈也串联使用时，则总的变比（）。 ["增加一倍","减小一倍","不变"]
You have backed up your database twice without connecting to the recovery catalog. What command do you issue to transfer the control-file metadata to the recovery catalog？（） [" synch catalog"," resync catalog"," replicate catalog"," update catalog"," restore catalog"]
服用后不要立即饮水的药品包括（） ["氨茶碱","硫糖铝","丙磺舒","川贝止咳糖浆","胶体果胶铋"]
关于城域网建设方案特点的描述中，下列哪些是正确的（） ["主干传输介质一般采用光纤","交换结点采用基于IP交换的高速路由交换机或ATM交换机","采用ISO／OSI七层结构模型","采用核心交换层，业务汇聚层与接入层3层模式"]
A retail customer has an 8-core Power 740 server with 2 partitions. Production has 4 dedicated cores and the test partition has 2 dedicated cores. Both partitions run during the day without problems. At night, batch processing is exceeding the run window. Which solution addresses this problem without requiring additional hardware?（） ["AddingVMControl will automate processor resource allocation during peak workloads.","Enable Dynamic Symmetric Multithreading in the HMC to balance workloads across processors.","Add processing resources during the times they are required using Utility Capacity on Demand.","Changing the partitions to Uncapped can make use of additional processor cycles during peak workloads."]
某房地产开发公司兴建住宅楼工程。招标文件规定，工程为砖混结构，5层，工期265日，固定总价合同模式。至投标阶段工程施工图设计尚未全部完成。在此过程中发生如下事件：
事件一：施工单位中标价格为1350万元。但是经双方3轮艰苦谈判，最终确定合同价为l200万元，并据此签订了施工承包合同。
事件二：在投标过程中，某施工单位未到现场进行勘察，认为工程结构简单并且对施工现场、周围环境非常熟悉，另外考虑工期不到一年，市场材料价格不会发生太大的变化，于是按照企业以往积累的经验编制标书。
事件三：部分合同条款中规定：l.施工单位按照开发公司批准的施工组织设计组织施工，施工单位不承担因此引起的工期延误和费用增加责任。
2.开发公司向施工单位提供场地的工程地质和主要管线资料，供施工单位参考使用。事件一中开发公司的做法是否正确？为什么？
