6. In virtually all types of issue in every animal species, dioxin induces the production of enzymes that are the organism's trying to metabolize, or render harmless, the chemical that is irrtating it.
(E) attempt to metabolize, or render harmless, the chemical irritant 这个选项是正确选项,我想问一下此处关于逗号的作用 第一个逗号是不是因为在平行结构中前面的结构复杂,所以在连词or前加了逗号 第二个逗号我不太理解,是不是the chemical irritant 是 metabolize和render的共同宾语,加逗号是因为the chemical irritant 前有个the,无法与前面的render harmless连接呢? G友们的帮助 |