According to the author,how could trust be established?
A. By economic means.
By legitimate measure.
C. By authoritative command.
D. By effort or action.
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已知某垄断厂商的成本函数为TC=5Q2+100Q,产品的需求函数为P=900-5Q,请计算:
① 利润极大时的产量、价格和利润;(6分)
70________
A. upon
B. after
C. through
D. until
宪法规定,父母有抚养教育未成年子女的义务,源有赡养扶助父母义务。
以下各项哪些不属于国债的功能 。
①弥补政府的财政赤字
②替代私人投资
③调节经济
④筹集建设资金
⑤从事公开市场业务
A. ①⑤
B. ①②
C. ②⑤
D. ①③④