认一认，选一选，选出不同类的一个。
(   )⑴A.book       B.ruler            C.nose
(   )⑵A.purple    B.finger           C.foot
(   )⑶A.orange    B.monkey           C.yellow
(  )⑷A.panda      B.bird            C.hot dog
(  )⑸A.milk       B.French fries    C.water