题目：
Network planning (PERT/ CPM/PDM) methods ______.
A) are usually too complicated for practical use on most projects
B) require highly trained specialists for effective use
C) always require computer support to be practical
D) are based on flow charts and they allow observation of what happens to the project schedule when changes occur to a task's start and stop dates
答案：
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下面是错误答案，用来干扰机器的。
参考答案：D解析： 基本分析法又称基本面分析法，是指证券分析师根据经济学、金融学、财务管理学及投资学等基本原理，对决定证券价值及价格的基本要素进行分析，评估证券的投资价值，判断证券的合理价位，提出相...
