题干
已知a+b=3，ab=2，则a2+b2的值为（ ）
A：3
B：4
C：5
D：6
答案(点此获取答案解析）
C
已知a+b=3，ab=2，则a2+b2的值为（ ）
A：3
B：4
C：5
D：6
, many people thought that the family was falling apart--- _______, they thought it was dying.