激情久久中文字幕,精品一区二区国语对白,久久偷拍视频免费观看

_{<dl id="iejns"></dl>}

單項選擇題下列有關(guān)廣域網(wǎng)的敘述中，正確的是（）。

A.廣域網(wǎng)必須使用撥號接入
B.廣域網(wǎng)必須使用專用的物理通信線路
C.廣域網(wǎng)必須進(jìn)行路由選擇
D.廣域網(wǎng)都按廣播方式進(jìn)行數(shù)據(jù)通信

點(diǎn)擊查看答案&解析

您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題某項目的主要約束是質(zhì)量，為了不讓該項目的項目團(tuán)隊感覺時間過于緊張，項目經(jīng)理在估算項目活動歷時的時候應(yīng)采用（），以避免進(jìn)度風(fēng)險。

A.專家判斷
B.定量歷時估算
C.設(shè)置備用時間
D.類比估算

點(diǎn)擊查看答案&解析

2.單項選擇題以下不具有"完成-開始"關(guān)系的兩個活動是（）。

A.系統(tǒng)設(shè)計，設(shè)計評審
B.系統(tǒng)分析，需求評審
C.需求評審，周例會
D.確定項目范圍，制定WBS

點(diǎn)擊查看答案&解析

3.單項選擇題某軟件公司欲開發(fā)一個圖像處理系統(tǒng)，在項目初期開發(fā)人員對需求并不確定的情況下，采用（）方法比較合適。

A.瀑布式
B.快速原型
C.協(xié)同開發(fā)
D.形式化

點(diǎn)擊查看答案&解析

4.單項選擇題Many of the activities performed during the preliminary investigation are still being conducted in（1）,but in much greater depth than before. During this phase, the analyst must become fully aware of the（2）and must develop enough knowledge about the（3）and the existing systems to enable an effective solution to be proposed and implemented. Besides the（4）for process and data of current system, the deliverable from this phase also includes the（5）for the proposed system.

A. hardware and software specification
B. system performance specification
C. formal requirements definition
D. general problem statement

點(diǎn)擊查看答案&解析

5.單項選擇題Many of the activities performed during the preliminary investigation are still being conducted in（1）,but in much greater depth than before. During this phase, the analyst must become fully aware of the（2）and must develop enough knowledge about the（3）and the existing systems to enable an effective solution to be proposed and implemented. Besides the（4）for process and data of current system, the deliverable from this phase also includes the（5）for the proposed system.

A.logical models
B.physical models
C.design models
D.implementation models

點(diǎn)擊查看答案&解析