-----Have you got used to the Chinese food, Robert?

-----Yes, but I don't like ______ when a Chinese host keeps serving me the food I don't like.

A．this

B．that

C．those

D．it

狗边吃食边分泌唾液与熊边吃食边表演节目分别属于何种反射活动…（   ）

A．简单反射，复杂反射

B．复杂反射，复杂反射

C．复杂反射，简单反射

D．简单反射，简单反射