题干
When Mom looked back on the early days of their marriage, she wondered how they had managed with ______ money.
A：so few
B：such few
C：so little
D：such little
答案(点此获取答案解析）
C
、 
、 
是两两不等的实数，点 
， 
，点 
， 
，则直线 
的倾斜角为（ ）