脂肪酸被降解成乙酰辅酶 A 是（    ）过程。

A、<span style="font-size:16px;font-family:宋体">水解作用</span>

B、<span style="font-size:16px;font-family:宋体">三羧酸循环</span><span style="font-size:16px;font-family: &#39;Times New Roman&#39;,&#39;serif&#39;">&nbsp;</span>

C、<span style="font-size:16px;font-family: &#39;Times New Roman&#39;,&#39;serif&#39;">β--</span><span style="font-size:16px;font-family:宋体">氧化</span>

D、<span style="font-size:16px;font-family:宋体">糖酵解</span>