题干
—Are you Mr. Li?
—_________．
A：Yes, I am
B：No, you're not
C：Yes, you are
答案(点此获取答案解析）
A
—Are you Mr. Li?
—_________．
A：Yes, I am
B：No, you're not
C：Yes, you are
，这条光线离开棱镜时与界面的夹角为（ ）