(____)A.Look,what's that?
(____)B.OK.Let's go.
(____)C.Today is fine. Let's go to the zoo.
(____)D.It's a lion.
(____)E.Hello,boys and girls.
(____)F.Hello,Miss Liu.
(____)G.Oh,it's big.
请回答下列问题:
下列行为对空气质量没有影响的是( )
属于学习行为的是( )