currency可数吗

　　What currency would you like to exchange?

　　请问你要兑换什么货币?

　　He bamboozled me into exchanging the foreign currency.

　　他哄骗我兑换了外汇。

　　That is why the charge of currency manipulation is false.

　　那就是为什么货币操纵的'指控是错误的。