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查看“00电子商务”班的选修报名情况。要求显示学号、姓名、课程编号、课程名称、志愿号，并按学号（升序）、志愿号排序（升序）。
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按部门统计各系的最少报名人数、最多报名人数、平均报名人数和报名总数，并汇总显示所有部门的报名总数。要求平均报名人数保留两位小数位。
De Los Santos asked photographers to take food picturesshe thinks it's a good way to learn about other cultures.
people read Sasha Martin's blog is to find recipes.is that they want to visit faraway places without leaving home.
Matthieu Paley took pictures of his travels show the world typical food scenes from the places he visited.
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