题干
—It’s Maria! I got the first place in the exam.
— ！Everyone knows you cheated and you just copied Tony’s.
— ！Everyone knows you cheated and you just copied Tony’s.
A：Congratulations.
B：Come o
C：Good luck
D：Cheer u
答案(点此获取答案解析）
B
中，
，
，
，则三角形的解的个数是（ ）