Bears and wolves have the same colors as barks of trees because ______.
A.they fear other beasts B.they prefer brown or grey colors C.they enjoy walking through forests quietly D.the colors help prevent themselves from being noticed正确答案D
Bears and wolves have the same colors as barks of trees because ______.
A.they fear other beasts B.they prefer brown or grey colors C.they enjoy walking through forests quietly D.the colors help prevent themselves from being noticed正确答案D
