【单选题】It was yesterday afternoon _____ we had a meeting in the meeting room. [ ]
【单选题】除草剂如敌草隆(DCMU)、百草枯(paraquat)等能够杀死植物,主要原因是______。
A.
这些除草剂能够阻断光合电子传递链而抑制光合作用
【多选题】根据波特的理论,企业在市场竞争中获得竞争优势的途径虽然很多,但最基本的有三种战略,即( )
【单选题】Last week, we had a meeting. I told the chairman that I couldn’t attend it for I had something i
A.
80. Last week, we had a meeting. I told the chairman that I couldn’t attend it for I had something important to do, but he insisted _____ my being present. A.on
【多选题】为获得竞争优势,企业可以根据自己的情况采取三大基本竞争战略的一种,它们是:()
【单选题】除草剂如敌草隆(DCMU)、百草枯(paraquat)等能够杀死植物,主要原因是( )