问题 多项选择题

加拿大鹰桥镍公司铜镍高铳氯气选择性浸出的工艺特点有()。

A.可自热维持较高温度,因主要反应都是放热的,可使体系沸腾,也降低机械搅拌功率消耗;

B.沸腾使大量水汽化,对调整溶液体积和浓度极为有利;

C.由于溶解度大,可保持较小的液固比;

D.氯气利用率高,尾气处理简单;

答案

参考答案:A, B, C, D, E

改错题

四、写作(共两节,满分35分)

第一节 短文改错(共10小题;每小题1分,满分10分)

以下标有题号的每一行均有一个错误,请找出,并按下列情况改正:

此行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词。

此行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。

此行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。

注意:请在答题卡上作答。

At the beginning of this term, we have a new classmate,                                  76.          

Fang Hua, from another school. At first I don't think much                                         77.          

of him. Therefore, after he got a seat beside me, I got to know                       78.          

him and we became friends. He isn't as proudly as I thought;                                    79.          

in fact he have very kind and friendly. He is good at physics.                             80.          

When I have trouble with it, I'll turn him for help. I also                                               81.          

find him humorous. He can even make up joke about things                             82.          

around us. While someone in my class is in low spirits, he is                             83.          

sure to making him happy. He is good at sports, too. Though                                    84.          

he isn't perfect, we look him as our good friend.                                                            85.          

单项选择题