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1.图1描述的是某商品的供给曲线由S_1平移到S_2。假设其他条件不变,下列因素中能直接导致这种变动关系的是()A.生产该商品所需投入品价格上涨B.部分生产者率先提高生产技术
1. Figure 1 shows that the supply curve of a commodity is shifted from S_1 to S_2. Assuming the other conditions remain unchanged, the following factors that can directly lead to such a change are: (A) the price of inputs needed to produce the commodity goes up B. Some producers took the lead in raising production technologies