5ÔÂ20ÈÕ£¬ÁÉÄþÉòÑôÁÉÖ즵°¼Û¸ñϵ÷0.20Ôª/½ï£¬30½ï¿ð×°ºÖ¿Ç´óÂëÖ÷Á÷µ½»§4.70Ôª/½ï£¬»õÔ´Îȶ¨£¬ÄÚÏú×ß»õÉÔ»º£¬¶ÌÆÚ»ò¹ÛÍû¡£