首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Avalanche and Its Safety An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainsid
Avalanche and Its Safety An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainsid
admin
2015-07-04
26
问题
Avalanche and Its Safety
An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are【C1】______the biggest dangers in the mountains for both life and property.
All avalanches are caused by an over-burden of material, typically snowpack, that is too massive and unstable for the slope【C2】______supports it. Determining the critical load, the amount of over-burden which is【C3】______to cause an avalanche, 【C4】______a complex task involving the evaluation of a number of factors.
Terrain slopes flatter than 25 degrees or steeper than 60 degrees typically have a low 【C5】______of avalanche. Snow does not【C6】______significantly on steep slopes; also, snow does not【C7】______easily on flat slopes. Human-triggered avalanches have the greatest incidence when the snow’s angle of rest is【C8】______35 and 45 degrees; the critical angle, the angle at which the human incidence of avalanches is greatest, is 38 degrees. The rule of thumb is: A slope that is【C9】______enough to hold snow but steep enough to ski has the potential to generate an avalanche, regardless of the angle. Additionally, avalanche risk increases with 【C10】______; that is, the more a slope is disturbed by skiers, the more likely it is that an avalanche will occur.
Due to the complexity of the subject, winter travelling in the backcountry is never 100% safe. Good avalanche safety is a continuous【C11】______, including route selection and examination of the snowpack, weather【C12】______, and human factors. Several well-known good habits can also 【C13】______the risk. If local authorities issue avalanche risk reports, they should be considered and all warnings should be paid 【C14】______to. Never follow in the tracks of others without your own evaluations; snow conditions are almost certain to have changed since they were made. Observe the terrain and note obvious avalanche paths where plants are 【C15】______or damaged. Avoid travelling below others who might trigger an avalanche.
【C13】
选项
A、increase
B、reduce
C、improve
D、remove
答案
B
解析
选项A不符合句子的意思;C不能和risk搭配;D也不符合句子的意思,因为不可能完全消除雪崩的隐患。
转载请注明原文地址:https://jikaoti.com/ti/8ZJsFFFM
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
HowTwoGreatConflictsHelpedtoChangeEuropeNinetyyearsagoonasunnymorninginNorthernFrance,somethinghappenedt
HowTwoGreatConflictsHelpedtoChangeEuropeNinetyyearsagoonasunnymorninginNorthernFrance,somethinghappenedt
NewFoodsandtheNewWorldInthelast500years,nothingaboutpeople—nottheirclothes,ideas,orlanguages—haschangeda
MedicineAwardKicksoffNobelPrizeAnnouncementsTwoscientistswhohavewonpraiseforresearchintothegrowthofcancer
Theyboughtthelandinordertobuildanewofficeblock.
WhatIsaDream?Forcenturies,peoplehavewonderedaboutthestrangethingsthattheydreamabout.Somepsychologistssay
HowDeafnessMakesItEasiertoHearMostpeoplethinkofBeethoven’shearinglossasanobstacletocomposingmusic.Howev
AKeepingGoodRelationswithLocalBusinessmenBServiceProvidedbyLocalNewspapersCLargeCirculationoftheNationalNe
Thelittleboywassofascinatedbythemightyriverthathewouldspendhourssittingonitsbankandgazingatthepassingboa
Thetomatojuiceleftabrownstainonthefrontofmyjacket.
随机试题
A.AFPB.CEAC.hCGD.CA125E.CA15-3
A.安全、有效、方便、廉价B.应用安全、疗效确切、质量稳定、使用方便C.临床必需、安全有效、价格合理、使用方便、市场能够保障供应D.科学、易懂,便于消费者自行判断、选择和使用非处方药标签、说明书的用语应
关于口服药物的吸收,一般非离子型药物易吸收,而离子型药物难吸收。()
所有的采暖系统,其组成部分都包括()。
正在编辑的Word文件因断电而丢失信息,原因是()。
学生管理是学校对学生在校内的学习和活动进行计划、组织、协调、控制的总称。()
1,3,0,6,10,9,()
《国语·郑语》中有一句话:“夫和实生物,同则不继。以他平他谓之和,故能丰长而物归之。若以同裨同,尽乃弃矣。”这句话蕴含的辩证法思想有
某二叉树中度为2的结点有10个,则该二叉树中有()个叶予结点。
A、Theymaybecomfortablebutaretooexpensive.B、Theydon’tliveuptotheirfame.C、Theydon’thelpsportsplayersatall.D、
最新回复
(
0
)