各位前辈好
想请问一个文法one of which/ one of them
看到一个句子写说
"All cells contain thousands of enzymes, one of _________ will
result in browning in the cell if it is exposed to oxygen.
画底线空格要填which，请问这边要怎么解释文法?
感谢

which是关系代名词代替enzymes 因为只有一个所以是 oneof which 不能用 one of them 除非写成两句

当前后可独立成句时 中间就不能用逗号了 改.:;