问题 单项选择题

电气设备火灾时不可以用()灭火器。

A.泡沫

B.卤代烷

C.二氧化碳

D.干粉

答案

参考答案:A

材料分析题

小军本是一个性格开朗、成绩较好的学生,可自从学会玩游戏机,没几天就被这玩艺儿迷住了。上学带小游戏机打,在家用电脑打。黑板上的字、课本上的练习,在他的眼睛里就像电子游戏里五颜六色的俄罗斯方块、跳棋子一样晃来晃去,赶也赶不走。后来,为了玩这些游戏他经常逃学,住在网吧,还向同学借钱买卡…… 结合材料,回答下列问题:

(1)小军沉迷于电子游戏,最终会导致什么结果?(两个方面即可)

                                                                                                                                                               

(2)玩电子游戏百害而无一利,这观点你同意吗?为什么?

                                                                                                                                                               

                                                                                                                                                             

                                                                                                                                                               

                                                                                                                                                              

单项选择题