给人起绰号一定要慎重，是因为绰号可能具有 [ ]
A、趣味性
B、侮辱性
C、形象性
答案：B
--- Tang Gonghong is indeed too large, I think.
--- But _____ that she is an excellent weight-lifting athlete.
A．in addition to
B．in spite of
C．thanks to
D．owing to
情报源的物质形式，按其载体形式可分为（）、（）和文献情报源。
