第16届亚运会将于2010年11月12日至27日在广州进行，家住安徽合肥的陈先生想去广州观看比赛、观光旅游。他在广州进行消费时，最适合使用的信用工具是[ ]

A．现金

B．信用卡

C．支票

D．人民币

（）involves comparing actual or planned project practices to those of other projects to generate ideas for improvement and to provide a basis by which to measure performance. These other projects can be within the performing organization or outside of it, and can be within the same or in another application area.

A.Metrics

B.Measurement

C.Benchmarking

D.Baseline