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【判断题】
起动系统中,起动继电器的作用是用小电流控制大电流,以保护起动机。( )A.
正确
B.
错误
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举一反三
【多选题】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的
D.
给物质加热时，酒精灯火焰要对准试管内被加热的物质
【单选题】Langdon stared at the picture, his horror now laced with fear . From this sentence, we can learn......
A.
His horror is greater than his fear.
B.
He is very horrible.
C.
His is horrible and fearful.
D.
He is very fearful.
【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】有关酒精灯的使用不正确的是（ ）
A.
点燃酒精灯时必须用火柴点燃
B.
应用酒精灯的外焰给试管加热
C.
酒精灯中的酒精量超过容积的2/3
D.
熄灭酒精灯时用灯帽盖灭
【简答题】[A] stared at [B] glanced at [C] noticed [D] watched
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