A:as before they did
B:as they regarded before
C:as they did before
D:as they had before
如果将细胞比作汽车,线粒体就相当于____,发动机靠燃烧汽油给汽车提供动力,线粒体则将细胞中的有机物当作“燃料”,在氧气的作用下,分解释放出____.
下列词语中划线字注音完全正确的一项是( )