基数效用论采用的是()分析法,序数效用论采用的是()分析法。
参考答案:边际效用;无差异曲线
肢体缺血的体征()
A.皮肤变薄,苍白发亮
B.汗毛脱落
C.肌肉萎缩
D.皮温降低
E.趾甲变薄
翻译句子。
1. Mary is twelve years old. She comes from Africa.
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2. What other animals do you like?
3. Tigers like eating meat and relax in the day.