真要带的话, 用tube搞不好要遇到麻烦, 常规都是点在一小块滤纸上, 用塑料薄膜一封, 夹在书本里就行了.
真要带的话, 用tube搞不好要遇到麻烦, 常规都是点在一小块滤纸上, 用塑料薄膜一封, 夹在书本里就行了.
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