...(Mathematic Symbols and Expressions) 2.3 常用前缀和后缀 Unit 2 科技英语基础知识(二) 2.1 关于数量(Numbers and Quantities) 1. 数制(Number Systems) 汉语的数制与英语不同, 美式英语与英式英语的数制也 不尽相同。
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Counting 1 ~ 5. Matching: Numbers and quantities.
了解数字1 ~ 5及数量结合概念。
We must be handed the cognitive tools of numbers before we can consistently and easily recognize higher quantities.
我们必须掌握数字的认知工具，才能始终轻松识别更大的数量。
Without numbers, healthy human adults struggle to precisely distinguish and recall quantities as low as four.
没有数字，健康成年人能准确区分或回忆起的数量会降低至四。
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