测流河段应选择在/顷直,稳定,水流集中,五分流、岔流、斜流、回流及死水等现象的河段。

题型:填空题

问题:

测流河段应选择在/顷直,稳定,水流集中,五分流、岔流、斜流、回流及死水等现象的河段。顺直河段长度应大于洪水时主河槽宽度的3倍。宜避开有()汇入或()及()等大水体产生变动回水的影响。

考点:环境科学技术及资源科学技术水质现场监测水质现场监测题库
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To Our Readers (读者)
Welcome to the New Century. We have changed many parts of our New Century. Photos are bigger. So you can enjoy the beautiful flowers and clothes better than before. There is more sports news. So you can know more information about sports. There is also a new column (栏目) of English learning and teaching. We are sure it will help you to learn and teach English better. We believe you will find it more intere sting when you read it.
In the six years since its founding (成立) in 1994, New Century has become the best English language newspaper (报纸) in our province. Here we want to give our thanks to Mr. Johnson for his help in the past years.

There was not a column of English learning and teaching in the past.
A. Right.B. Wrong. C. Doesn’t say.

As you know, we have tried our best to develop a modern English language newspaper in our province. We’ve done well. We believe we can do better in the future. We hope you will find our New Century even more interesting. Please write to us and let us know what you think of it. We welcome your suggestions.

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(2005年)甲装修公司欠乙建材商场货款5万元,乙商场需付甲公司装修费2万元。现甲公司欠款已到期,乙商场欠费已过诉讼时效,甲公司欲以装修费充抵货款。下列哪一种说法是正确的?

A.甲公司有权主张抵销

B.甲公司主张抵销,须经乙商场同意

C.双方债务性质不同,不得抵销

D.乙商场债务己过诉讼时效,不得抵销

题型:填空题

能在KOH的醇溶液中发生消去反应的是      [ ]

A.CH3Cl      

B.(CH3)3CCH2Cl       

C.       

D.

题型:填空题

荡击波征是什么?

题型:填空题

天原生产烧碱的方法有()和()。

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