题目：
软件维护是指系统交付使用后对软件所做的改变，以下 Ⅰ．改正程序中存在的错误和不足 Ⅱ．使软件能适应新的软、硬件环境 Ⅲ．增加新的应用内容和功能 哪个(些)是需要进行软件维护的原因
A．Ⅰ
B．Ⅰ和Ⅱ
C．Ⅱ和Ⅲ
D．Ⅰ、Ⅱ和Ⅲ
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
软件维护是指系统交付使用后对软件所做的改变，以下 Ⅰ．改正程序中存在的错误和不足
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