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【简答题】
某单位曝气池SV30为7%，MLSS2800mg/L，连续几天测定都如此，我也知道污泥过度矿化了，含有过多的无机质。但有专家说这不可能，说一定是SV或者MLSS测定有误，不知道这么低的污泥指数究竟可不可能？
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举一反三
【单选题】The old man bought a ticket ______.
A.
after he got on the train
B.
before he got on the train
C.
as soon as the conductor told him to buy one
【单选题】An important point the author made in this passage is ______.
A.
living together before marriage is significant every couple should try
B.
living together before marriage is a choice that should be respected
C.
living together is the best way to bridge the gaps between a couple
D.
living together is a symbol of the modern form. of civilization
【单选题】施工评标过程中，发现投标报价大写金额与小写金额不一致时，评标委员会正确的处理办法是（）。
A.
以小写金额为准修正投标报价并经投标人书面确认
B.
以大写金额为准修正投标报价并经投标人书面确认
C.
由投标人书面澄清，按大写或按小写来计算投标报价
D.
将该投标文件直接作废标处理
【单选题】-- When did you_____? -- I’ve_____ _for two months.
A.
got married; been married
B.
be marred; been married
C.
get married; got married
D.
get marred; marred
【简答题】根据给出的图片回答下列问题: 井格式基础是(); 箱型基础是(); 桩基础是(); 条形基础是()。
【单选题】He soon ______from failure, and promised to work harder than before.
A.
got across
B.
got through
C.
got over
D.
got away
【单选题】They ________ with each other for two years before they got married. [ ]
A.
had fallen in love
B.
got in love
C.
had been in love
D.
fell in love
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