案例背景:2005年6月,顾某及妻子前往某楼盘销售中心看房,该高档住宅是由A房地产公司开发的。在销售中心,顾某看到楼盘彩色宣传资料和沙盘中均显示该楼盘配备有儿童乐园、休闲草坪、游泳池、网球场等附属设施,因此顾先生和妻子对该楼盘非常满意。次日顾先生即与A公司签订了《商品房认购协议书》,约定顾先生向A公司购买一套面积约为123平方米的住宅,根据协议 Case Background: June 2005, Gu and his wife went to a real estate sales center showings, the high-end residential real estate development company by the A. In the sales center, Gu saw real estate color publicity materials and sand table shows the real estate is equipped with children's playground, leisure lawn, swimming pool, tennis court and other ancillary facilities, so Mr. Gu and his wife are very satisfied with the real estate. On the next day, Mr. Gu signed the Agreement for Subscription of Commercial Properties with Company A, which stipulated that Mr. Gu purchased a set of residential area of ​​about 123 square meters from Company A and, pursuant to the agreement