问题 问答题

背景


某公路一路段土方路堤填筑,该路段路线从大片麦地中间穿过,并经过三处墓穴。经野外取土试验测得原地土强度符合要求,施工方外运砂性土回填了三处墓穴,清除20cm厚的原地土,平整后进行压实,最小压实度要求按路床压实度减两个百分点加以控制。随后填筑路基,填高1m,路槽38cm。将清除出的原地土用于边坡表层作为种植土使用。试验人员测得路槽底面以下80cm深度内平均相对含水量后判定路基为中湿路基。
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问题

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路基有哪几种干湿类型根据什么指标进行划分

答案

参考答案:路基于湿类型划分为四类:干燥、中湿、潮湿和过湿。根据路基土的分界稠度确定。

写作题

书面表达。

     假设你是大卫(David),你收到了汤姆 (Tom)的求助信。请你根据所给出的来信内容,

针对他学习中出现的问题,提出你的具体建议来帮助他。

    要求:至少提出三条建议,不少于70词。    

Dear David,

     I've been feeling very bad these days because I failed another English test. I tried my best, but I still

couldn't get good grades. It's hard for me to memorize English words and I have a lot of difficulties with

the grammar. Since I am a little shy, I am afraid of speaking English in class. I know studying English well

is very important, so I don't want to stop studying it. How do you study English? Can you give me some

advice?

                                                                                                              Yours,

                                                                                                                    Tom 

Dear Tom,

     I'm glad to help you. As for how to study English, here is my advice.

______________________________________________________________________________

______________________________________________________________________________

     I hope my advice will be of some help.

                                                                                                               Yours,

                                                                                                                     David

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