用以下三种途径来制取相同质量的硝酸铜：①铜与浓硝酸反应；②铜与稀硝酸反应；③铜与氧气反应生成CuO，CuO再与稀硝酸反应。下列有关叙述不正确的是

A．所消耗的硝酸的量：①>②>③

B．对环境造成的危害，③最小

C．因铜与浓硝酸作用最快，故制取硝酸铜的最佳方案是①

D．三种途径所消耗的铜的质量不相等

The experience of foreign countries is worth learning from and taking for reference.

A．learning and reference.

B．our learning and our reference

C．our learning from and taking for reference

D．our learning and make reference to