布鲁纳提出的学习理论是（ ）
A．认知目的说
B．认知同化说
C．认知发现说
D．认知接受说
参考答案：C
---Tina, I want to have a pet. How about a dog?
--- I prefer a cat. It is ______ to take care of.
A．easiest
B．the easiest
C．easier
D．easy
