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
76
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.
【C15】
选项
A、fresh
B、big
C、grown
D、missing
答案
D
解析
该句是作者给出的一系列忠告之一,即认真观察地形,注意明显的雪崩路径:没有植物或植物被毁坏的地方。选项A、B、C均不符合句意。
转载请注明原文地址:https://kaotiyun.com/show/nsLd777K
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
EveryDogHasItsSayKimikoFukuda,aJapanesegirl,alwayswonderedwhatherdogwastryingtosay.Wheneversheputonmake
StomachUlcerStomachulcersarethecauseofseverepainformanypeople.Doctorshavebeenabletohelplessenthepainof
NewFoodsandtheNewWorldInthelast500years,nothingaboutpeople—nottheirclothes,ideas,orlanguages—haschangeda
MedicineAwardKicksoffNobelPrizeAnnouncementsTwoscientistswhohavewonpraiseforresearchintothegrowthofcancer
ScientistsDevelopWaysofDetectingHeartAttackGermanresearchershave(1)anewgenerationofdefibrillatorsandearlywarn
ListeningtoBirdsongAmalezebrafinchchirpsawaytohimself.Suddenlyhenoticesafemalebirdnearby.Herealizesheha
Attheageof30,Herseysuddenlybecameacelebrity.
AdifferenttechniquesBsocialrelationshipsandcommunicationClanguageandinformationDseveralcausesworkingtogetherEa
ManyofCarsonMcCuller’scharactersareisolated,disappointedpeople.
Thelittleboywassofascinatedbythemightyriverthathewouldspendhourssittingonitsbankandgazingatthepassingboa
随机试题
公司债务资本和权益资本之间应该有一个最优的比例,即()
滑数脉多见于
前列腺增生症患者直肠指诊前列腺的特征下列哪一项不符( )。
蛔虫病的治疗,辅以调理脾胃,主以
“壮水之主,以制阳光”是指()。
高压管道加工中,相邻两管道的外壁不得相碰,间距必须大于()mm。
某项固定资产原值为80000元,无残值,折旧年限为5年,若用双倍余额递减法计提折旧,则第4年应提折旧额为()。
下列作品、作家、国别(或朝代)对应正确的是()。
有研究指出,私人保险支出越多的国家往往越富有,在这些国家,购买保险是一种大众化的投资手段,产生这种现象的主要原因是:
A、TRUEB、FALSEA
最新回复
(
0
)