说到电子商务的起源，人类利用电子手段开展各种商务活动的时代最早是通过( )开始的。
A．互联网 B．电话C．电报 D．电视
参考答案：C
水：农业
A．消费：经济
B．婚姻：人生
C．文字：文化
D．娱乐：生活
When the inspecting team said there was nothing illegal in the management of the company, the manager breathed deeply _______. [ ]
A. with a relief
B. at a relief
C. in relief
D. to his relief
