When he was alive,the old scientist used to say that knowledge ___英语解答

When he was alive,the old scientist used to say that knowledge ______ from practice and he gained

人气：295 ℃　时间：2020-07-10 18:40:28

解答

应该是comes
知识源于实践,是属于真理性的话语.不会随时间的变化而变化,用一般现在时