【题干考查点】Roland Winterson对于他自己组织的会议的看法：
【原文定位句】定位段落第五段，定位句为“Roland Winterson，chief executive of a large manufacturing company．He believes that meetings should be short，sharp and infrequent-“I try to hold no more than two or three meetings a week，atlended by a maximum of three people for no longer than half an hour，”he says．“They are clearly aimed at achieving a specific objective．”即：Roland Winterson是一家制造业公司的首席执行官，他认为会议需要简短、有针对性、不经常开。“我试着让会议控制在一周2-3次，每次会议最多三人参加。最长半个小时；参会人员要有明确的会议实现目标。
【答案对应点】原文定位句中they are clearly aimed at achieving a specific objective对应选项B中He ensures they have a definite purpose。