问题 多项选择题

精密水准测量中,水准测段限差不包括( )。

A.测段前后视距累计差

B.往返高差之差

C.基辅高差之差

D.视线距地面之差

E.基本分划与辅助分划之差

答案

参考答案:A,B

解析: 本题问的是水准测段的限差,而不是测站的限差。选项中基辅高差之差、视线距地面之差、基本分划与辅助分划之差都是测站的限差。故选AB。

材料分析题

1998年10月23日,四川省机械工业学校食堂内发生了一起严重的硫酸毁容案。该校9702班机电维修专业学生17岁的叶炎将浓硫酸泼向刚下晚自习、正在食堂就餐的同学们,造成40多名学生和职工不同程度的烧伤,其中16人住院。目前犯罪嫌疑人已被警方刑事拘留。校方称:该生平时成绩中等,事发前未与人发生矛盾,没有任何先兆。据叶炎交待,几天前他得了肝炎,去医院检查,怀疑自己得了癌症,在其复仇心理的支配下,产生了对学校和社会的强烈不满,于是做好了准备,导致了这一惨剧。 分析回答:

(1)叶炎的犯罪行为是哪些不健康心理作怪造成的?

                                                                                                                                                              

(2)导致这些不健康心理的原因是什么? 

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                               

(3)对我们有什么启示? 

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                               

判断题