读句子，排序。

( ) Good morning. Where are you going this afternoon?

( ) At 3 o'clock.

( ) Buy a pair of shoes.

( ) When are you going?

( ) Good morning.

( ) What are you going to do?

( ) I'm going to the shoe store.

蜈蚣是

A．病理产物
B．生理产物
C．干燥全体
D．去掉内脏的干燥晶
E．动物骨骼