Chinese chess has a history of more than 2, 000 years. Today it still interests _______ the young _______ the old.
A:both; and
B:either; or
C:not; but
D:neither; nor
东南亚华人、华侨的祖先大多来自我国哪两个省份( )
已知数列an满足:a1=17对于任意的n∈N*,an+1=72an1-an则a1413-a1314=( )