When he was alive, the old scientist used to say that knowledge ____ from practice and he gained his experience by doing a lot of practical work.

A．was coming

B．had come

C．comes

D．would come

有学者说“在WTO中一直都是弱者和强者在进行谈判，而不是平等者之间谋求共同发展”，这表明世界贸易组织及运行

A．完全协商一致原则形同虚设

B．未有效推动经济全球化

C．不利于国际经济新秩序的建立

D．相对缺失公平性、公正性