区女士，28岁，妊娠38周，患心脏病。刚临产，产科晴况暂无异常。心功能Ⅱ级。

护理措施中，错误的是（）。

A.灌肠

B.吸氧

C.半卧位

D.必要时注射哌替啶

E.观察早期心衰征象

Many of the activities performed during the preliminary investigation are still being conducted in （）, but in much greater depth than before. During this phase, the analyst must become fully aware of the （） and must develop enough knowledge about the （） and the existing systems to enable an effective solution to be proposed and implemented. Besides the （） for process and data of current system, the deliverable from this phase also includes the （） for the proposed system.

the analyst must become fully aware of the（）

A．main symptom

B．root problem

C．final blueprint

D．data specification