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【单选题】
汽车尾气的无害化处理已成为当今汽车工业的一项重要课题，其基本原理是实现2NO（g）+2CO（g） N 2 （g）+2CO 2 （g）的反应。关于该反应，下列说法正确的是（   ）
A.
只要使用合理的催化剂及载体，就可完全清除NO和CO
B.
该反应达到平衡时v(NO)正=v(CO)逆
C.
假设该反应在密闭容器中进行，一段时间后达到平衡时c(NO)=c(CO)
D.
使用性能好的催化剂可使反应的平衡常数增大
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