会议简介包括（）。
A、数据式、条款式
B、表格式、总述式
C、表格式、条款式
D、总述式、数据式
参考答案：C
—Have you heard from Nelly recently？
—Yes. I his letters and cards many times while I was in Italy.
A．have received
B．received
C．had received
D．would receive
填料塔第三代填料阶梯环的锥形翻边有什么作用？
