⑴ 涓𨱒椴沧欐眮锛岀幉鐜插厛锽濅简鍗婃澂銆傜劧钖庣敤姘村姞婊★纴鍙埚枬浜嗗崐𨱒锛屽啀锷犳弧姘达纴鍙埚枬浜嗗崐𨱒锛屽啀锷犳弧姘达纴链钖庡叏閮ㄥ枬瀹屻
姘村枬寰楀 姗欐眮=1𨱒 姘=1/2+1/2+1/2=3/2𨱒