第一章测试1.The
-series 
diverges for （ ）.A:
B:
C:
答案:C
2.The series
has the sum equal to （ ）.A:2 B:3 C:The sum does not exist
答案:C
3.Series
. （ ）A:对 B:错
答案:B
4.Series
converges. （ ）A:错 B:对
答案:A
5.The radius of convergence of
is 
. （ ）A:错 B:对
答案:B
