（四）负有责任的企业事业单位未按照噪声污染综合治理方案的要求采取有效措施减轻噪声污染。
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If you prefer a bagless design, all of the cordless vacuums in this guide fall into that category, making them easier and cheaper to maintain than bagged models. Some cordless models also have removable, replaceable battery packs, which is super handy. That means you can buy a replacement battery and install it easily, without needing to seek out professional assistance. Also, these extra batteries cost around $150-$200 a pop — expensive, yes, but nowhere near as costly as buying a whole new cordless vacuum.
开局之年“第一课”，习近平总书记阐明新征程上树立和践行正确政绩观的深远考量：“‘十五五’开局之年，无论是制定规划还是部署实施，都需要有正确的政绩观。省市县乡领导班子将陆续换届，强调政绩观也很有针对性。”