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【简答题】
There are several ways you can find out about the countries and places you wish to visit. You can talk to friends who have travelled to the places. Or you can go and see a colour film. Or you can read travel books. It would seem that there are three kinds of travel books. The first are those that give a personal, subjective(主观的) account of travels which the author has actually made himself. if they are informative and have a good index(索引), then they can be useful to you when you are planning your travels. The second kind are those books whose purpose is to give a purely objective(客观的) description of things to be done and seen. If a well-read, cultured person has written such a book, then it is even more useful. It can be sorted as a selected guide book. The third kind are those books which are called “a guide” to some place or other. If they are good, they will, in addition to their factual information, give an analysis or an explanation. Like the first kind they can be inspiring and interesting. But their basic purpose is to help the reader who wishes to plan in the most practical way. Whatever kind of travel book you choose you must make sure that it does not describe everything as “wonderful”, “excellent” or “magical”. You must also note its date of publication because travel is a very practical affair and many things change quickly in the twenty-first century. Finally, you should make sure that the contents are well presented and easy to find. 小题1:This passage is about _______. A.how to travel B.how to buy travel books C.how to read a travel book D.travel books 小题2:The following travel books may be of use when you plan your travels except _______. A.the book written by some people who have had the same travel experience themselves B.the book which tells you what is worth doing and seeing based on the facts C.the book in which a lot of big adjectives are used to draw your attention D.the book which offers you a lot of useful information like a tour guide 小题3: The date of the publication must be noticed because _______. A.the world is changing and so are the places you are going to visit B.the price of the book is always changing C.the author of the book may be different D.the contents of the book are always the same
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【单选题】下列关于水准测量的叙述,正确的是( )。
A.
水准测量时利用水准仪提供的水平视线,读取竖立在两个点上的水准尺的读数,通过计算求出地面上两点间的高差,根据已知点的高程计算出待定点的高程
B.
水准测量时,已知水准点到待定水准点之间距离较远,则只安置一次仪器即可测得两点之间的高差
C.
水准测量可应用于国家等级的高程控制测量、各种工程测量和施工测量
D.
在测定地面点高程的方法中,水准测量的精度最高
【单选题】乳剂形成的必要条件包括
A.
提高两相液体的表面张力
B.
加人适量的乳化剂
C.
有时可不必形成牢固的乳化膜
D.
有任意的相比
E.
很高的温度
【判断题】工程控制测量在利用国家高精度控制点时,应选择适当的投影带和投影面,主要是解决长度变形问题。
A.
正确
B.
错误
【多选题】乳剂形成的必要条件包括
A.
降低表面张力
B.
加入适宜的乳化剂
C.
有适当的相体积比
D.
增加分散介质的黏度
E.
形成牢固的乳化膜
【单选题】岩体结构是影响围岩稳定性的主要因素之一,下列关于岩体结构方面的有关叙述,不正确的是()。
A.
岩体是由结构面和结构体组成的地质体,常为节节裂隙面、层面、片理面,甚至为断层面结构面所切割,这些结构面是影响围岩稳定性的重要因素
B.
结构面常可分为很多组,根据其成因、充填物及间距、宽度、强度、连续性等情况不同,先分析其对围岩稳定性的影响程度,然后决定洞室位置和洞轴方向
C.
在坚硬岩石中,只要考虑岩体结构的影响,可以不考虑围岩应力的影响,地应力影响不大
D.
岩质软弱的岩石体和结构面一样,同样是对稳定越控制作用的因素,在应力较大的情况下可引起围岩较大的变形甚至失稳
【多选题】需要某晶闸管实际承担的波形电流有效值为300A,求额定电流可选为多少安培?(答案不唯一)
A.
200A
B.
250A
C.
330A
D.
350A
【简答题】工程控制测量在利用国家高精度控制点时,应选择适当的投影带和投影面,主要是解决 (1) 问题。
【多选题】乳剂形成的必要条件包括
A.
机械做功
B.
聚山梨酯-80
C.
乳化剂
D.
适宜相比
E.
药物
【单选题】地质分析法是围岩稳定分析方法之一,在对地层岩性的分析中,下列说法不正确的是()。
A.
只要洞室埋深不大,洞室围岩往往是稳定的
B.
在坚硬岩石地区,应特别注意在构造带、岩脉、整合及不整合面形成风化带时对稳定的影响
C.
对于软弱岩石,应特别注意风化后常出现的次生矿物等,它们改变了岩石原来的力学性质,破坏了组成矿物之间及岩块之间的联结力,从而严重削弱了岩体的稳定性
D.
黏土岩、泥质页岩和易溶岩等遇水发生变化,会使围岩产生较大的变形而破坏
【多选题】关于岩体的工程特性,下述说法不准确的是( )。
A.
岩体应力—应变关系曲线上,可将岩体变形-破坏分为四个阶段:节理压密、弹性变形、塑性变形、破坏阶段
B.
岩体工程性质受到结构体与结构面性质、二者的空间组合特征、岩体赋存环境等的综合影响
C.
岩体强度有抗拉强度、抗压强度和剪切强度之分,但对于岩体来说,因抗拉强度最小,所以工程上一般主要关注岩体的抗拉强度
D.
岩体的流变包括蠕变、松弛和弹性后效,蠕变是当应变不变时,应力随时间增加而增长的现象
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