题干
看图读一读。填空。
super long toy bears robot don't
A: Good morning. Can I help you?
B: Yes.
A: Do you like ____?
B: No, I ____. I like robots. They're ____.
A: Look at this ____. Its legs are ____. It can run. It's cool. Do you like it?
B: Yes.
答案(点此获取答案解析）
toy bears,don't,super,robot,long
，则求代数式3a2b－2ab2－2(ab－
a2b)＋ab+3ab2的值.