Precisely what a species might have（ ）itself to through generations of selection and survival is an open question.
A.正确答案Caltered
B.adopted
C.adapted
D.attached
Precisely what a species might have（ ）itself to through generations of selection and survival is an open question.
Precisely what a species might have（ ）itself to through generations of selection and survival is an open question.
A.正确答案Caltered
B.adopted
C.adapted
D.attached
