There _____ some books and a pencil on the desk.[ ]
A. am
B. is
C. are
D. be
答案:C
南京国民政府初级行政区域为( )
A.邻
B.区
C.县
D.市
17, 23, 37, 43, 53, 61, ( )
A.69 B.77 C.79 D.83