关于液膜分离过程的热力学，下述说法不正确的是？（）A.在逆向迁移过程中，阴离子与金属

发布时间：2019-06-25 10:33 │ 来源：www.tikuol.com

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问题：

关于液膜分离过程的热力学，下述说法不正确的是？（）

A.在逆向迁移过程中，阴离子与金属离子一起由低浓度迁移到高浓度处；

B.在同向迁移过程中，阴离子与金属离子一起由低浓度迁移到高浓度处；

C.在逆向迁移过程中，两相中氢离子的活度差是金属离子由低浓度迁移到高浓度处的推动力；

D.在逆向迁移过程中，氢离子与金属离子的迁移方向是相反的

考点：冶金工程技术湿法冶金技术湿法冶金技术题库

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词语填空：选择所给单词完成短文。

answer most kinds into times drinking do much give our

     Which animal do we need 1.            , dogs, horses, pigs? No! The 2.            to the question is cows.
Why cows? Cows give us milk. And milk is one of 3.            most important 4.            of food.
     Suppose (假设) that all the milk cows make in one year were put 5.              bottles. And suppose these
bottles were put side by side. The line of bottles would go all around the world 400 6.             . That is a lot
of milk, less than half of which is used for 7.             and cooking. Most of it is used to make butter, cheese,
ice cream and many other things. It takes many cows to give us that 8.            milk. But not as many as it
used to, a cow used to give only about 1500 quarts (夸脱) of milk a year. Now a fine cow may 9.
more than 3000 quarts in a year.
    Why 10.            cows give more today? Now farmers have better cows. The cows get better care and
better food.

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A．What about

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企业经营者必然高度关心其资本的保值和增值状况。（）

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