题干
— I won't attend the meeting _____ him ____ I have too much work to do these days.
— I see.
A：instead; as a result
B：instead of; because
C：instead; for example
D：instead of; in order to
答案(点此获取答案解析）
B
的法向量 
，平面 
的法向量 
，若 
，则