【单选题】If the price of the market basket of goods in the base year of 1994 was $20,000 and the price of the same basket had risen to $22,o000 by 1998, the CPI for 1998
【单选题】Point out the coordination number and the oxidation number of the central atom in coordination compound [Co(H2NCH2CH2NH2)2(NO2)Cl]Cl
【单选题】患者女性,50岁,肺癌晚期。胸闷、气促伴Horner综合征综合征。此综合征是由于肿瘤压迫了下列哪一结构所致()