The World Wide Web is sometimes jokingly called the World Wide Wait because it _____ be very slow. [ ]

A. should

B. must

C. will

D. can

客户致电10086人工咨询4G语音卡主体套餐时客服代表如何处理？（）

A.交4G专席处理

B.优先受理

C.交班长二解处理

D.建议客户到服务厅