简答题 下列交易的价值是否应当计入国内生产总值？为什么？a．顾客在餐馆支付餐费。b．一家公司购买一幢旧楼。c．一家供应商向制造个人电脑的公司出售电脑芯片。d．一位消费者从交易商手中买进一辆汽车。Should the value of the following transactions be included as part of GDP？Why？a．A consumer pays for a meal at a restaurant．b．A company buys an old building．c．A supplier sells computer chips to a firm that makes personal computers．d．A consumer buys a car from a dealer．