<篇章結構>第31至34題為題組 Is synesthesia genetically inherited or acquired after birth? Scientists agree that synesthesia has a genetic basis， because it frequently runs in families. But an actual synesthesia gene (or genes) has not been identified yet. __33__ For example， the flavors people with taste-word synesthesia experience are usually childhood flavors， such as chocolate or strawberries. Also， people with color-music synesthesia more often than not have had early musical training. (A) This consistency serves as a proof that synesthesia is real. (B) Meanwhile， environmental influences seem to shape a person’s synesthesia. (C) People with synesthesia used to be accused of making their experiences up. (D) Some studies even show that people may all be synesthetic to some degree.
