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【单选题】
操作中的精馏塔,若选用的回流比小于最小回流比,则()A.
不变操作
B.
xD增加，xW减小
C.
xD减小，xW增加
D.
xD，xW均不变
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反馈参考答案：
举一反三
【简答题】“I will work with Congress on a jobs and growth ____(9) to add momentum to the recovery and to put people _____(10).”
【简答题】闭经可分为( )和( )两类。
【简答题】机器的主要组成及各部分的功用。
【简答题】年度终了，应将本年实现的净利润或净亏损转入“利润分配—未分配利润”账户，结转后“本年利润”账户应无余额
【单选题】(Unit 8 Text B) Lastly, green restrictions generate growth and jobs. China’s drive for cleaner energy sources has gained momentum. China accounts for about two-fifths of global production of electric ...
A.
chemical factories
B.
paper mills
C.
electric car producers
D.
cement-makers
【单选题】According to the text, all of the followings are true except that______.
A.
the path of a business's development can be broken down into three vital elements and stages
B.
once established, a team of grunt workers will ensure a business's continued growth and momentum
C.
if the 'police', 'army', and 'commandos' work together, maximum efficiency and business growth will not necessarily result
D.
the innovating pioneers that start the business often work outside the rules to get the job done
【简答题】While fossil fuels—coal,oil,gas—still generate roughly 85 percent of the world’s energy supply, it's clearer than ever that the future belongs to renewable sources such as wind and solar.The move to r...
【简答题】经皮给药制剂基本可分为（）和（）两类，包括充填封闭型、复合膜型、黏胶分散型、微储库型、聚合物骨架型。
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