2. 外语
  3. When our university laboratory bought this microscope we were given a one year’s ______.

When our university laboratory bought this microscope we were given a one year’s ______.

admin2010-01-15  48
问题 When our university laboratory bought this microscope we were given a one year’s ______.
选项 A、reservation
B、security
C、proof
D、guarantee
答案D
解析 guarantee商品使用保证。
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专业英语四级

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