Which of the following statements is incorrect about grade-three thinking? ( ) A:Grade-three thinking is full of unconscious prejudice, ignorance and hypocrisy. B:Grade-three thinking is created because of the lack of proficiency, honesty and consistency. C:Grade-three thinking is sometimes held by innocent people, because they mean no harm and cause no harm. D:Grade-three thinking relies more on subjective judgment than on objective judgment. 答案: Grade-three thinking is sometimes held by innocent people, because they mean no harm and cause no harm.