白蚁属于节肢动物门，昆虫纲．以下对白以特征叙述错误的是  （　　）

A．有三对足，附肢分节

B．多种种类的有两对翅

C．具有外骨骼，有蜕皮现象

D．身体分为头胸足三部分

Security cameras are restricted to ________ spaces，such as hallways and exits.There will be no cameras in classrooms，locker rooms(更衣室)or bathrooms.

A．common

B．private

C．usual

D．ordinary