A:3m
B:33 m
C:35 m
D:4m
①温故而知新。____—____
②尺有所短,寸有所长。____—____
③当局者迷,旁观者清。____—____
④由俭入奢易,由奢入俭难。____—____ ____—____
⑤谦虚使人进步,骄傲使人落后。____—____ ____—____