陈宇
()1. Pandas have _______________skin under their black fur(毛) and
_______________ skin under their white fur.
A. black,white B. black,pink C. pink,pink
()2. _______________ can drink and breathe(呼吸) through(通過) their skin.
A. Frogs B. Snakes C. Birds
()3. A polar bears skin is _______________.
A. white B. black C. brown
()4. _______________ skin helps cool them down.
A. Sheeps B. Pigs C. Giraffes