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.

Many of the activities performed during the preliminary investigation are still being conducted in （）, but in much greater depth than before.

A．analysis phase

B．design phase

C．implementation phase

D．maintenance phase

（）是为了使不同企业所提供的商品或劳务相区别而使用的一种标记。

A.标准字

B.企业标志

C.企业商标

D.企业专用印刷字体