网络稿件的来源有哪几个方面（）？
A、本网站原创稿件
B、转载国内传统媒体稿件
C、转载国内其他网站稿件
D、民自发来稿
参考答案：A, B, C, D
My neighbour devoted his spare time ________ ancient coins. [ ]
A. to collect
B. to collecting
C. on collecting
D. in collecting
清代反对书吏腐败的措施有何借鉴作用？
