A、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 13px; ">人</span></p>
B、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 13px; ">机械</span></p>
C、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 13px; ">方法</span></p>
D、<p><span style="font-family: \'Microsoft YaHei\'; font-size: 13px; ">环境</span></p>
A、<p><span style="font-family: 'Microsoft YaHei'; font-size: 13px; ">人</span></p>
B、<p><span style="font-family: 'Microsoft YaHei'; font-size: 13px; ">机械</span></p>
C、<p><span style="font-family: 'Microsoft YaHei'; font-size: 13px; ">方法</span></p>
D、<p><span style="font-family: 'Microsoft YaHei'; font-size: 13px; ">环境</span></p>
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