— Why haven't you bought any butter?

— I _____ to, but I forgot about it. [ ]

A. meant

B. liked

C. wanted

D. expected

《素问·生气通天论》所说的“阴平阳秘，精神乃治”，是阴阳什么关系的正常

A．互根与互用

B．对立与制约

C．制约与消长

D．消长与平衡

E．制约与转化