题目

下列小动物是如何过冬的？把对应的答案用线段连接起来。燕子 换毛蚂蚁 到温暖的南方青蛙 储存食物蛇 冬眠兔子 答案：解释划线的字： 板印书籍：                         唐人尚未盛为之:                  五代时始印五经：                   已后：                           有布衣毕升：                       又为活板：                        火烧令坚：                         先设一铁板：                     其上以松脂、蜡和纸灰之类冒之：                                        乃密布字印：                       持就火炀之：                      则字平如砥：                       一板已自布字：                    第二板已具：                       更互用之：                        瞬息可就：                         每韵为一帖：                         以纸帖之：                          有奇字素无备者：                  旋刻之：                           不若燔土：                        用讫再火令药熔：                    殊不沾污：                        若止印三二本