需求完全无弹性
参考答案:
是纸无论价格任何变化,需求量都不会变动,其弹性系数为:Ed=0。
Ask yourself whether you have a balance between work and play. Too much of one creates a
sacrifice or loss with _____.[ ]
A. another
B. the other
C. the others
D. others
某药与Na2CO3共热,酸化后有白色沉淀产生,并产生醋酸臭气,此药物为
A.对氨基水杨酸钠
B.利多卡因
C.苯甲酸钠
D.阿司匹林
E.普鲁卡因