在菜品经营中，创新菜大多是完全的新菜品。

A、反射弧是反射的解剖学基础
B、反射弧中的任何一个环节遭到破坏，反射将不能实现
C、反射弧中的传出神经纤维和效应器遭到损伤不能形成感觉
D、反射弧是指参与反射活动的神经结构

A、people’s auditory perception is always selective
B、people’s short-term memory lasts for no more than two hours
C、some audience have difficulty in adapting to the speaker’s presentation style
D、listeners are often egocentric
E、the speaker fails to express ideas fluently and clearly