电子商务供应链不利于保持现有客户关系和促进业务增长。
参考答案：错
There was an English party last Sunday. Li Ming and I it and we had a great time.[ ]
A. joined
B. joined in
C. took part in
D. take part in
“一门三父子，都是大文豪，诗赋传千古，峨眉共比高。”这首诗中的“三父子”指的是______。
A．曹操、曹丕、曹植B．苏洵、苏轼、苏辙C．班彪、班固、班超D．杜甫、杜牧、杜荀鹤
