A cleaner was struck and killed by lightning when working on the tarmac (停机坪) at the Beijing airport at 8 a.m. August 11, 2013. Police said when they found the body he _______ a mobile phone.

A．was still being held

B．was still holding

C．held

D．had been holding

电子商务网站的基本功能不包括( )

A．产品展示
B．数据管理
C．网上订购
D．网上结算