A、<p><span style="font-size: 10.5pt; font-family: 宋体;">合成过程在线粒体，关键酶是乙酰<span lang="EN-US">CoA</span>羧化酶</span></p>
B、<p><span style="font-size: 10.5pt; font-family: 宋体;">合成过程在胞液，关键酶是乙酰<span lang="EN-US">CoA</span>羧化酶</span> </p>
C、<p><span style="font-size: 10.5pt; font-family: 宋体;">合成过程在线粒体，关键酶是丙二酰<span lang="EN-US">CoA</span>羧化酶</span></p>
D、<p><span style="font-size: 10.5pt; font-family: 宋体;">合成过程在胞液，关键酶是丙二酰<span lang="EN-US">CoA</span>羧化酶</span></p>
E、<p><span style="font-size: 10.5pt; font-family: 宋体;">合成过程在胞液和线粒体，关键酶是丙 二酰<span lang="EN-US">CoA</span>羧化酶</span></p>