3、ay,hasgreatlychangedthemannerinwhichbusinesstodayisconducted.A.oneB.thoseC.thatD.these【答案】C【解析】【分析】【详解】考查代词。asopposedtothatofyesterday“与昨天的相对比”,that是代词,代替前面刚提到过的名词(特指),相当于the+名词,以避免重复,此处的that代表前面的thespeedofcommunications,句意为与过去相比,现今交流速度的改变,已经极大的改变了商业管理的方式。故选C.4.______inheavyschoolwork, most