其中，资料管理包括有商品资料、供货商资料、客户资料的添加、删除、修改、查询等操作。
The data management which include add, delete, modify and inquire the data about goods, data about supplier and data about customer.
其中，资料管理包括有商品资料、供货商资料、客户资料的添加、删除、修改、查询等操作。
The data management which include add, delete, modify and inquire the data about goods, data about supplier and data about customer.
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