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 mountainside. A
Avalanche and Its Safety An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainside. A
admin
2009-06-15
58
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(51)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(52)supports it. Determining the critical load, the amount of over-burden which is(53)to cause an avalanche,(54)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(55)of avalanche. Snow does not(56)significantly on steep slopes; also, snow does not(57)easily on flat slopes. Human-triggered avalanches have the greatest incidence when the snow’s angle of rest is(58)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(59)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(60); that is, the more a slope is disturbed by skiers, the more likely it is that an avalanche will occur.
Duc to the complexity of the subject, winter travelling in the backcountry is never 100% safe. Good avalanche safety is a continuous(61), including route selection and examination of the snowpack, weather(62), and human factors. Several well-known good habits can also(63)the risk. If local authorities issue avalanche risk reports, they should be considered and all warnings should be paid(64)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(65)or damaged. Avoid traveling below others who might trigger an avalanche.
选项
A、mostly
B、likely
C、clearly
D、surely
答案
B
解析
选项A不符合语法,C和D符合语法,但不符合常识:过度的雪的积压可能导致雪崩,而不是必定导致雪崩。所以,B是最佳答案。
转载请注明原文地址:https://kaotiyun.com/show/AUhd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
相关试题推荐
HospitalMistreatmentAccordingtoastudy,mostmedicalinternsreportexperiencingmistreatment,includinghumiliationbyseni
U.S.,EuropeanDrugOfficialsApproveInhaledInsulinAformofinsulinforpeoplewithdiabetestotakebymouthisexpectedto
ManandComputerWhatmakespeopledifferentfromcomputerprograms?Whatisthemissingelementthatourtheoriesdon’tyet(
WhatisthebasichonorintakingpartintheOlympicGames?Allofthefollowingaredoneintheopeningceremonyexcept_____
AtpresentinChinatheTBinfectionrateWhichofthefollowingisNOTameasuresuggestedbyWHOthattheChinesegovernment
Whydoestheauthormention"pyramidbuilders"?AccordingtoKrom,Egypt’sOldKingdomfell
Anxietyaboutfinancialmatterlessenedsomewhatwhen,in1910,theUnitedStatesacceptedresponsibilityforLiberia’ssurvival
Themakingofweathervanesdevicesfixedonthetopofbuildingstoshowdirectionsofthewindisanancientskill,goingback
Notallmemberstatesabidedbytheprincipletheyhadagreedonpreviously.
TheeconomycontinuedtoexhibitsignsofdeclineinSeptember.
随机试题
学习型组织
孙中山民族主义的主要内容和局限性是什么?
A、群体公益B、科学公益C、后代公益D、医疗群体公益E、社会公益公益论内容中,要求医疗为卫生服务要以患者为中心,但并不排除兼顾医务人员的利益的是
下列选项中,属于水利工程质量监督主要内容的是()。
1.背景某支线机场航站楼施工任务采取工程总承包,经过公开招投标,某建筑工程公司获得工程任务,但航站楼弱电工程的分包是由业主指定的。工程顺利开始土建、安装、装修等施工,但弱电工程施工单位却迟迟不能按照总包单位的要求进场,并认为是与业主签订合同,可以不服从总
银行汇票存款、银行本票存款和商业汇票存款,均必需通过“其他货币资金”账户核算。()
目前,中国已基本形成了由()调控和监督、国家银行为主体、政策性金融与商业性金融机构相分离,多种金融机构分工合作、功能互补的现代化金融中介机构体系。
新古典综合学派发展了凯恩斯货币供给理论,该理论认为货币供应量是( )。
给定材料1.2013年6月22日,在柬埔寨首都金边召开的第37届世界遗产委员会会议一致审议通过中国的红河哈尼梯田文化景观列入《世界遗产名录》。红河哈尼梯田文化景观成为中国第31项世界文化遗产,中国世界遗产总数达到45项。汉文字史料记载就有13
Duringtheearlyyearsofthiscentury,wheatwasseenastheverylifebloodofWesternCanada.Peopleoncitystreetswatched
最新回复
(
0
)