Most people believe that landscape is {{U}} (1) {{/U}},
but Earth is a {{U}} (2) {{/U}} body with a continually {{U}} (3)
{{/U}} surface. There are two principal influences that shape the
{{U}} (4) {{/U}}: constructive processes such as {{U}} (5) {{/U}}
and {{U}} (6) {{/U}} forces such as erosion.
Hills and
mountains are often regarded as the {{U}} (7) {{/U}} of permanence. But,
interestingly enough, the higher a mountain is, the more {{U}} (8) {{/U}}
it was formed. Lower mountains tend to be
[单项选择]某商场在开业前要选择经营商品的种类,现有甲、乙、丙、丁四类商品可供选择。由于对未来市场需求无法做到比较精确的预测,只能大致估计为:需求量较高、需求量中等、需求量较低三种情况。这三种情况的预计损益值如下表所示。用等概率准则进行决策时,选择比较满意的品种是()。 自然状态 | 经营品种 |
甲 | 乙 | 丙 | 丁 |
需求量较高 | 300 | 350 | 150 | 200 |
需求量中等 |
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