1.3 典型的晶体结构和表面结构一.堆积二.晶体结构的表达方法三. 典型晶体结构四. 多晶型现

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Don't drink too much alcohol. For some people, alcohol can become a problem. You may drink more than usual as a way of coping with or hiding your emotions, or just to fill time. But alcohol won't help you solve your problems and could also make you feel more depressed.
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