单项选择题What did the researchers learn from the second step ()
A.The trees in the new forest were in different size. B.The insects in the new forest had a different taste. C.Tamarins could get used to the new environment. D.Above 80% of tamarins survived.
单项选择题A Stetson is a ()
A.large bandanna B.Mexican sombrero C.tough vaquero D.wide-brimmed hat