① 1000鍧楀瓨妗1000鍧楀瓨鍒伴摱琛屼竴涓鏈堬紝鏈夊氬皯鍒╂伅錛
1000鍧楀瓨妗o紝娌℃湁鍒╂伅銆
1000鍧楀瓨閾惰岋紝鏈夊埄鎮錛屽傛灉鍙瀛1涓鏈堬紝鍒欏彧鑳藉瓨媧繪湡鍌ㄨ搫錛屽埄鐜囦負0.3%銆
1000脳0.3%梅12=0.25錛堝厓錛
① 1000鍧楀瓨妗1000鍧楀瓨鍒伴摱琛屼竴涓鏈堬紝鏈夊氬皯鍒╂伅錛
1000鍧楀瓨妗o紝娌℃湁鍒╂伅銆
1000鍧楀瓨閾惰岋紝鏈夊埄鎮錛屽傛灉鍙瀛1涓鏈堬紝鍒欏彧鑳藉瓨媧繪湡鍌ㄨ搫錛屽埄鐜囦負0.3%銆
1000脳0.3%梅12=0.25錛堝厓錛