【单选题】
以下表示水中杂质含量的概念中,含量最大是___。
A. 无机物;
B. 含盐量;
C. 总固体;
D. 有机物。
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答案
C
解析
暂无解析
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除盐设备经过大修后,进水试压应从___。
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B. 底部缓慢进水,开空气门,至反洗排水排出,然后关闭所有阀门;
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元素是具有相同___同一类原子的总称。
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B. 质子数;
C. 中子数;
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酸碱指示剂的颜色随溶液___的变化。
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B. 电导率;
C. pH值;
D. 温度。
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混床出水SiO2和DD的控制指标为___。
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某水溶液中物质的物质的量为浓度为___。
A. 0.2006 mmol/L;
B. 0.2006g/L;
C. 0.2006%;
D. 0.2006mg/ML。
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逆流再生交换器内的压力层树脂的作用是___。
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B. 备用树脂;
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溶液的摩尔浓度是指___。
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【单选题】
新树脂在进行预处理时,用酸浸泡清洗至中性的目的是除去树指中的___。
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离子交换法除盐除去的盐类为___。
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泵较常用的流量调节为___。
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为满足水处理工艺用气和仪用气的需要,设置___台压缩空气贮罐。
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阳床失效时出水___变化最明显。
A. SiO2;
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古雷项目化学水处理站阳浮动床共有___。
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下列物质属于电解质的是___。
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混合床一般串联在___。
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混合床再生前,必须先进行___。
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古雷项目凝结水处理站混床共有___。
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下列酸中,酸性最强的是___。
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在下列天然水中的杂质中,颗粒最大的是___。
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原水泵运行时泵体温度过高原因有___。
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用盐酸作逆流再生的强酸性阳离子交换树脂,其再生比耗为___。
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混床出水电导不能超过___。
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树脂201×7中的“7”是指树脂的___。
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阴离子交换树脂受污染后,出现一些特征,下面叙述错误的是___。
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1泵和2泵投入“连锁”,一般指___。
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阳离子交换树脂在使用中受活性氯污染后___。
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B. 颜色变深体积增大;
C. 颜色砂变体积增大;
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树脂在运行中流失的主要原因是___。
A. 小反洗流量不大;
B. 反洗操作不当;
C. 中排网套破裂;
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除去水中离子的态杂质,目前采用最普遍的方法是___。
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甲男与乙女通过网聊恋爱,后乙提出分手遭甲威胁,乙无奈遂于甲办理了结婚登记。婚后甲得知,乙婚前就患有医学上不应当结婚的疾病且久治不愈,于是甲向法院起诉撤销该婚姻,下列说法正确的是___
A. 法院应判决撤销该婚姻
B. 该案应判决宣告该婚姻无效
C. 对该案的审理应当进行调解
D. 当时人可以对法院的处理结果依法提出上诉
【单选题】
甲男与乙女系出自同一外祖父母的表兄妹,后来乙女被他人收养。根据我国婚姻法的规定,他们___
A. 可以结婚
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C. 不能结婚
D. 以上均不正确
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某甲与某乙已登记结婚,但未同居,也未举行婚礼。之后某甲后悔与某乙结婚,进行下列( )行为后,婚姻关系才能解除。___
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甲乙夫妻经协商同意离婚,甲因出差委托丙去离婚登记机关代为办理离婚登记手续,依我国法律,丙___
A. 可以代理
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甲乙结婚后购得房屋一套,仅以甲的名字进行了登记。后甲乙感情不和,甲擅自将房屋以时价出售给不知情的丙,并办理了房屋所有权变更登记手续,下列正确的是___
A. 买卖合同有效,房屋所有权未转移
B. 买卖合同无效,房屋所有权已转移
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D. 买卖合同无效,房屋所有权未转移
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王某以个人名义向张某独资设立的飞跃百货有限公司借款10万元,借款期限1年。不久,王某与李某登记结婚,将上述借款全部用于婚房的装修。婚后半年,王某与李某协议离婚,未对债务的偿还作出约定。下列哪一选项是正确的___
A. 由张某向王某请求偿还
B. 由张某向王某和李某请求偿还
C. 飞跃公司只能向王某请求偿还
D. 由飞跃公司向王某和李某请求偿还