In A-version the first "it" is merely an idiomatic device for anticipating the subject of the sentence
去书内
-
郑婷匀
In A-version the first "it" is merely an idiomatic device for anticipating the subject of the sentence ("that the Chinese revolution triumphed"). Readers do not perceive it as a pronoun with an antecedent, any more than they would in the construction "It is true that the Chinese revolution triumphed.

京公网安备 11010802032529号