问题 判断题

对于一个催化装置,都有一个能最大限度地提高催化裂化装置的经济效益的最佳催化剂活性。

答案

参考答案:对

问答题

结合课文内容,回答问题。     

1.“我”为什么爱看灯光下的 * * 广场?这表达了“我”怎样的思想感情? 

                                                                                                                                                      

                                                                                                                                                      

2.“多好啊!”这句话在课文中出现了几次? 分别是谁在什么情况下说的?他们在说这句话的时候,看到了什么,会想到些什么?

                                                                                                                                                       

                                                                                                                                                        

                                                                                                                                                        

填空题