A．can be predicted at birth B．stays the same throughout his life C．can be increased by education D．is determined by his childhood
单项选择题（6）处应填写（）
A．so B．as C．and D．but
单项选择题The passage is most probably taken from （）.
A．a letter to the editor B．a comment on a novel C．an introduction to a dictionary D．a news-report in the newspaper
