单项选择题 The total cost of one product’s export is CNY14,000, and the net income of foreign of export is USD2,500. If the foreign exchange quoted by Bank of China is CNY680 for USD100, then the Export Profit Margin should be:A.18.5%B.21.43%C.16.6%D.23.65%
问答题 1000
单项选择题 工业机器人有( )中运动模式。 A. 1 B. 2 C. 3 D. 4