13. The word “tangible” (Line 2, Para. 4) refers to something _______. ·that is precious ·that is usable ·that cabe touched ·that cabe reproduced
答案是:单选题 ·changes have taken place in both the appearance and the concept of banks ·To the former money is a real commodity but to the latter the means of producing more money. ·that can be touched