【判断题】Langdon replied, splitting the difference. It can be explained that Langdon made no difference.
【单选题】绿色营销观念的诞生基于人们对一下环境产生的反思( )
【多选题】在使用酒精灯的过程中,下列做法中不正确的是 [ ]
D.
给物质加热时,酒精灯火焰要对准试管内被加热的物质
【简答题】在使用酒精灯的过程中,下列做法中不正确的是( ) A.向正在燃着的酒精灯里添加酒精 B.熄灭酒精灯时,用灯帽盖灭 C.酒精灯内酒精超过酒精灯容积 2 3 D.给物质加热时,酒精灯火焰要对准试管内被加热的物质
【简答题】I stared into the blackness and wondered if he was as aware of my presence as ________. A) I was of his B) I was of him C) I did of him D) I did of his
【单选题】使用酒精灯要注意安全,下列有关酒精灯的使用方法正确的是( )
【简答题】[A] stared at [B] glanced at [C] noticed [D] watched
【单选题】下面使用酒精灯的操作方法中,正确的是( )
A.
向酒精灯中添加酒精,不超过酒精灯容积的2/3