问题 填空题

催化作用()改变化学平衡状态。

答案

参考答案:不能

材料分析题

(1)图中这位未成年人正面临着哪种不良诱惑?有什么危害?

                                                                                                                                                               

                                                                                                                                                               

(2)如果你是图中的他,应该怎么做

                                                                                                                                                               

(3)面对图中的诱惑,请你也给其他同学提个醒,你最想对他们说什么?

                                                                                                                                                              

                                                                                                                                                              

单项选择题