单选题
发布日期:2021-03-22
keep them dry when the bilges are full of water
keep them cool when the vessel is underway
make them more accessible for repairs
prevent accidental ignition of any gasoline vapors that may have accumulated in the bilges
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生态位重叠。
领导权力的主要内容包括()。
“两岸猿声啼不住,轻舟已过万重山”的诗句是唐代诗仙李白途经( )时留下的。
曲面x2+2y2+3z2=21在点(1,-2,2)的法线方程为( )。
旅客补票统计表分为()。
个人不得购买下列()剧毒化学品。
结核性脑膜炎典型的脑脊液改变是( )。
下列关于证券公司违反规定委托他人代为买卖证券的处罚办法中,正确的有()。 Ⅰ.没收违法所得,并处以违法所得1倍以上3倍以下的罚款 Ⅱ.没有违法所得或者违法所得不足10万元的,处以10万元以上30万元以下的罚款 Ⅲ.情节严重的,暂停或者撤销其相关证券业务许可 Ⅳ.对直接负责的主管人员和其他直接责任人员处以3万元以上10万元以下的罚款
列车退行的规定:准许列车由区间返回车站时,车站值班员应及时准备接车进路,开放进站信号机或按引导办法接车,并报告()。
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