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,故宫博物院,及各旅游点的购物中心),还有在北京和天津的一些商店,我都用过.)

关于支票,我是用自己的支票在中行换的,比CASH高些因为算汇票,不过时间会较长,我是先用家里的人民币,给家里支票.