目前我国工程造价信息化建设还处于起步阶段，造价信息发布机制尚不完善，工程造价信息数据（）有待提高。 A.标准化 。 B.时效性 。 C.准确性 。 D.临时性。
非竞争性拮抗剂的特点是（） 与受体结合非常牢固。 使激动药量效曲线降低。 提高激动剂浓度可以对抗其作用。 双倒数作图法可以显示其特性。 具有激动药与拮抗药两重特性。
You work as a database administrator for Certkiller .com. In your database server， the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve？（） It degrades the run time and compiler performance.。 It provides better run time and compiler performance.。 It provides better optimization of the statement during parse time.。 It forces the rule based optimizer to be used for statement optimization.。 It provides better run time performance but slightly degraded compiler performance. 。 It provides better run time performance but slightly degraded run time performance.。
【背景资料】某工程，建筑面积30000m2.由地上一栋27层，二层以上标准层高3米，地下1层，层高3.5米，框架剪力墙结构体系，基坑最大开挖深度6m，淤泥质土层，地下水较高，本工程外防护脚手架为双排落地式，使用2台塔吊做施工运输用。
签约开工后，项目经理安排某得力施工员编制总体质量控制计划，编制完成后交项目总工程师审批后，即组织实施，项目监理工程师向项目经理部发出通知，要求项目部编制的总体质量控制计划应交监理部审批，并指出深基坑工程应编制专项施工方案，且要求进行专家论证。
请根据上述背景资料完成以下选项主体结构按照施工质量验收层次划分属于分项工程。
You are using an Automatic Storage Management （ASM） instance to manage the files of your production database. You have two disk groups， DG1and DG2with one device each. In the parameter file of the production database， the following parameters have been specified： DB_CREATE_ONLINE_LOG_DEST_1 = ’+dg1’ DB_CREATE_ONLINE_LOG_DEST_2 = ’+dg2’ What would be the impact of this setting？（） When a new log group is added， it would have one member in each disk group.。 When a new log group is added， it would have two members in each disk group.。 When a new tablespace is added， it would have one data file in each disk group.。 When a new log file is added， it would have one member spread across the disk groups.。
An Enterprise customer wants to reduce the configuration effort for their Teleworker router deployments. What is one way to simplify the IPSec-related configuration in the remote routers?（）
