Which of the following would most likely be considered an implement? A: a shovel B: a nightmare C: a puppy D: a hamburger

西汉时期出现的农业生产工具是什么？WhatistheagriculturalproductiontoolthatappearedintheWesternHanDynasty? A: 耧车 ananimal-drawnseedplough B: 秧马  Yangma，avehiclefortransportingriceplantstothericefields C: 铁锹  spade;shovel D: 曲辕犁  QuYuanplough,bendingplow

How did the accident happen A: The worker was bending down to pick something up and touched one of the wheels. B: The same worker hit his hand with a shovel. C: The same worker was closing a door with his hand trapped in it.