Flying foxes tend to _____.
A.double their number every year
B.fight and kill a lot of themselves
C.move from place to place constantly
D.lose a lot their young
正确答案是C
Flying foxes tend to _____.
A.double their number every year
B.fight and kill a lot of themselves
C.move from place to place constantly
D.lose a lot their young
正确答案是C