【背景资料】某9层住宅项目，某装饰施工单位负责内外装饰装修，装饰内容较多，竣工后不久发现部分楼层水泥砂浆地面大面积起砂、空鼓、裂缝，外墙砖空鼓、脱落等。
请根据背景资料完成相应小题选项对严重起砂的地面，应把面层铲除后，重新铺设水泥砂浆面层。
Which three statements are true about memory buffer allocation by a MySQL Server?（） Global buffers such as the InnoDB buffer pool are allocated after the server starts, and are never freed。 Thread buffers are allocated when a client connects, and are freed when the client disconnects。 Buffers that are needed for certain operation are allocated when the operation starts, and freed when it ends。 User buffers are allocated at server startup and freed when the user is dropped。 All dynamic buffers that are set with a SET GLOBAL statement immediately get allocated globally, and are never freed。
A customer has 12 x445s and 20 x365s in their datacenter that are dedicated to production workloads. The customer wants to standardize on IBM Director as their Intel environment systems management platform. Which server platform is supported as a Director server？（） zSeries。 pSeries。 iSeries。 iSeries with IXA Adapter。
A recently installed package needs to be rolled back to a previous version. Which of the following commands will perform the task？（） reject。 cleanup。 deinstall。 uninstall。
女性，54岁，急性胰腺炎行胆囊造瘘、胰腺引流术后，仍禁食、输液及抗感染治疗，并吸入高浓度氧，动脉血气分析为pH7.46，Pa0255mmHg，PaC0232mmHg。x线胸片示两肺有较广泛的点、片状阴影，心电图示窦性心动过速。不属于成人呼吸窘迫综合征进展期表现的是（） 呼吸困难。 发绀。 肺部X线检查无明显变化。 代谢性酸中毒。 动脉血氧分压下降。
You are working on a test database where instance recovery takes a considerable amount of time. How can reduce the recovery time？（）
