题干
35．－I’m interested in that beautiful bag. What do you charge for it?
－$ 115.
－_________, but I can’t afford it.
A：It’s worth that
B：It’s really nice
C：Please lower the price
D：That’s too dear
答案(点此获取答案解析）
A
相交于两点M，N，若
，则
（O为坐标原点）等于 （ ）
