题目内容
（请给出正确答案）
[主观题]
How did the accident happen？A．The worker was bending down to pick something up and touched
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.
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