问题 问答题 简答题

简述混合取水的多方案比较可采用哪些主要方法。

答案

参考答案:

对混合取水的多种方案,可采用下列方法进行比较:

(1)地表水、地下水、中水、矿坑排水按建设用水保证率计算可供水量方案比较。

(2)地表水、地下水、中水、矿坑排水水质是否符合建设项目用水要求的比较。

(3)输水方式、输水线路从技术、经济及能源消耗等方面的比较。

(4)取水方式及位置的比较。

改错题

此题要求改正所给短文中的错误。对标有题号的每一行做出判断:如无错误,在该行右边横线上画一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:

该行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉。

该行缺一个词: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。

该行错一个词: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:原行没有错的不要改。

By midday the sun was very strong. Jim was so tired                              1.      

to walk. There was no trees near the road, so he rested                                2.      

under a big rock. After drinking some water, he took his                             3.      

shirt, lying down on the ground and fell asleep at once.                                4.      

He was very tired that he didn’t wake up until the evening.                          5.      

He was just about to jump while he felt something moving                        6.      

near his feet. He looked up and saw a long black snake.                               7.      

Jim was so frightening that he didn’t dare to move. The                            8.      

snake began to crawl(爬) across his legs. It crawled on and                          9.      

on until it was disappeared under the rocks, Jim jumped                              10.     

to his feet, picked up his shirt and ran down the road. 

单项选择题