you can use your credit card in most places

i went back to china last year, it's ok to use my credit card there (全聚德,故宮博物院,及各旅遊點的購物中心),還有在北京和天津的一些商店,我都用過.)

關於支票,我是用自己的支票在中行換的,比CASH高些因為算匯票,不過時間會較長,我是先用家裏的人民幣,給家裏支票.