Spectrum 在线电子书 图书标签:
发表于2024-09-12
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Level 3 of a six-level course in American English which stresses student comprehension of listening and reading input before they are asked to produce and practise new language. It includes a systematic approach to grammar with new structures highlighted in dialogues, readings and exercises.
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Spectrum 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024