晨、晚间护理包括下列内容（）

[单选题]You upgraded from a previous Oracle database version to Oracle Database version to Oracle Database12c. Your database supports a mixed workload. During the day, lots of insert, update, and deleteoperations are performed. At night, Extract, Transform, Load (ETL) and batch reporting jobs are run. The ETL jobs perform certain database operations using two or more concurrent sessions.After the upgrade, you notice that the performance of ETL jobs has degraded. To ascertain the cause ofperformance degradation, you want to collect basic statistics such as the level of parallelism, totaldatabase time, and the number of I/O requests for the ETL jobs. How do you accomplish this?（）

[问答题]什么是钩蚴皮炎？

[单选题]在信号微机监测系统中电源相序监测是由（）转换单元监测的。

[单选题]下面不属于第一代移动通信系统的是（）

[单选题]半数以上孕妇大约多少周后产生血型抗体（）

[名词解释题]移动性浊音

[单选题]某男，8岁。颈部可见蚯蚓状迂曲的血管肿物，紫红色，肿物质地柔软而有弹性，境界分明，压之可稍微退色，放松后恢复紫红色。应首先考虑（　　）。

[单选题]冬季施工混凝土，是指工地昼夜平均气温低于（）时进行的混凝土工程施工。

[判断题]铁路机车车辆验收系统印章由铁道部运输局归口管理。

[单选题]强化理论是研究（）的一种理论。