在报纸上看到广告:
1.ARMSTRONG AIR CENTRAL AIR CONDITIONING-2 TON $980 (HEATECH 787-7646) - ORDER BEFORE APRIL 30
2.KEEPRITE 823-0523 OR 228-9926 OR 731-6109没写价格,但是说给一个"FREE ENVIORSTACTER", 不知是什么东西 (10 SEER)
3.HARDING 8312257 OR 2298439 说是有"SPRING TUNE-UP SPECIAL"
4.LENNOX 746-7000 OR 834-4594 说是有"SPRING CONSUMER PROMOTION" "CENTRAL AIR CONDITIONING CLEAROUT SPECIALS ON 2002 UNITS"
到底哪个好呀?