哈市某花卉种植基地欲购进甲、乙两种君子兰进行培育,若购进甲种2株,乙种3株,则共需要成本1700元;若购进甲种3株,乙种1株,则共需要成本1500元.
Last year a new law in China to stop the officers taking money from our country for themselves.
读经纬网示意图(见图),回答下列问题。