I agree with most of what you said, but I can't agree with ______.
A:something
B:anything
C:everything
D:nothing
中学生张某平时举止文明,明辨是非,乐于助人。一天放学回家路上,张某发现并及时报警,协助民警抓获了正在偷窃电动车的不法分子,这一事例说明( )
①灭六国,建立帝制
②统一文字、货币和度量衡
③创立科举制度
④修长城、北击匈奴