下图是选修1-2中《推理与证明》一章的知识结构图,请把
“①合情推理”,“②类比推理”,“③综合法”,“④反证法”填入适当的方框内.(填序号即可)
A填____B填____C填____D填____
英汉词组互译
Besides calling 120, here is what you should do when no one is around to help.