【单选题】某晶体属于立方晶系,一晶面截x轴于a/2、y轴于b/3、z轴于c/4,则该晶面的指标为()
【简答题】找出所选讲的《左传》课文中的古今字、异体
【判断题】Greek people put Greece at the center of their maps, which is a sign of ethnocentrism.()
【单选题】Thousands of people ______ from Greece every year to work in West Germany.
【简答题】设AS曲线方程为y s =500,AD曲线方程为y D =600-50P。 (1)求供求均衡点。 (2)如果AD曲线向右平移10%,求新的供求均衡点。