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【简答题】
简述胴体分级的必要性
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】收入弹性(income elasticity)
【简答题】期权弹性(option elasticity)
【简答题】弹性论(Elasticity Approach)
【单选题】If the short run elasticity of supply for a product is 0.8, in the long run elasticity, supply:
A.
Is inelastic.
B.
Is unit elastic.
C.
Is inelastic.
D.
Any of the above could be true of the product’s long run elasticity of supply.
【单选题】The difference between slope and elasticity is that_________.
A.
slope is a ratio of two percentage changes, and elasticity is a ratio of two changes
B.
slope is a ratio of two changes, and elasticity is a ratio of two percentage changes
C.
none of the above; there is no difference between slope and elasticity
D.
slope measures changes in quantity demanded more accurately than elasticity
【单选题】以下人物中,谁主持修建了中国人自己设计并建造的第一座现代化大型桥梁—钱塘江大桥,成为中国铁路桥梁史上的一块里程碑;新中国成立后,又参与设计了武汉长江大桥。晚年,他编写了《中国桥梁史》、《中国的古桥和新桥》。
A.
李四光
B.
茅以升
C.
童第周
D.
华罗庚
【简答题】需求交叉弹性(cross elasticity of demand)
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