Specific strategies of the modeling teaching were displayed by "packing questions" teaching cases.
通过“打包问题”的具体教学实例展示了建模教学的具体实施策略。
Next, the technical questions of the present packing, way of the gift, accepting gifts, returning gifts and requesting are briefly involved.
其次，简要涉及了礼品的包装以及赠礼、受礼、回礼的方式、要求等技术性问题。
But the present its packing existence packing protective value is insufficient, questions and so on packing material not environmental protection.
而目前其包装存在包装保护性能不足，包装材料不环保等问题。
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