题干
How beautifully Catherine sings! I have never heard a ____ voice.
A：good
B：better
C：best
答案(点此获取答案解析）
B
How beautifully Catherine sings! I have never heard a ____ voice.
A：good
B：better
C：best
.③纸币完全能代替金属货执行金属货币的职能.④纸币的发行量必须以流通中所需要的货币量为依据。