But because we have grown up with biological systems and have had no alternatives, we have always accepted their costs without evaluation.
但由于我们是伴随着生物系统长大的，而且别无选择，所以我们总是不加考虑地接受它们的成本。
Sample evaluation questions help to decide which of the possible design alternatives most efficiently achieves the system requirements.
文中举例的评估问题有助于评估者判断在多种可能的设计中，哪一种最能有效地达到系统的需求。
His system improves the selection and evaluation processes by enabling remote assessment of appropriate wheelchair alternatives with advanced queries and selection criteria.
这一系统改进了评估和选择过程，用先进的问卷调查和选择标准使得远距离选择合适的轮椅成为现实。
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