打开工作簿文件EXC.xlsx（内容同第2套电子表格题（2）中的EXC.xlsx文件），对工作表“选修课程成绩单”内的数据清单的内容进行分类汇总（提示：分类汇总前先按主要关键字“课程名称”升序排序），分类字段为“课程名称”，汇总方式为“平均值”，汇总项为“成绩”，汇总结果显示在数据下方，将执行分类汇总后的工作表还保在EXC.xlsx工作簿文件中，工作表名不变。

如果文件系统中有两个文件重名，不应采用（）。

A、单级目录结构

B、树型目录结构

C、二级目录结构

D、A和C

You have been tasked with creating Business Events for an E-Business Suite workflow project. Whatwould you use to create your Business Events?（）

A、Oracle Workflow Builder

B、Oracle Workflow Definition Loader

C、Oracle Business Event Definition Loader

D、Workflow Administrator Web page in E-Business Suite

Which three statements correctly describe the features of the I/O calibration process?（）

Only one I/O calibration process can run at a time.

It automates the resource allocation for the Automated Maintenance Tasks.

It improves the performance of the performance-critical sessions while running.

It can be used to estimate the maximum number of I/Os and maximum latency time for the system.

The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE.

患者，男性，52岁。行硬膜外腔阻滞腹腔镜胆囊切除术，术后患者出现剧烈背痛，进行性脊髓压迫症状，伴肌无力、尿潴留、括约肌功能障碍，继而出现完全性截瘫。首先考虑患者发生了（）

A、硬膜外血肿

B、麻醉药中毒反应

C、全脊髓麻醉

D、假性脑膜炎

E、麻醉平面过高

When defining a function activity, what is true about the Result Type?（） (Choose two.)

Result Type is optional.

Result Type is mandatory.

Result Type can be changed after it is assigned to the function activity.

Result Type should belong to the same item type as the function activity