ecause of his talent, as well as his hard work正确,无需重复介词of；as well as 和使用“and”是一个意思,用"and“时不用重复”of“,同样的道理,as well as也不需要.
because of 接两个名词
ecause of his talent, as well as his hard work正确,无需重复介词of；as well as 和使用“and”是一个意思,用"and“时不用重复”of“,同样的道理,as well as也不需要.