首页
登录
职称英语
[originaltext]M: The volcanic ash from the eruption of Mount Saint Helens certa
[originaltext]M: The volcanic ash from the eruption of Mount Saint Helens certa
游客
2023-07-26
38
管理
问题
M: The volcanic ash from the eruption of Mount Saint Helens certainly caused a lot of damage, didn’t it?
W: It did, but not as much as experts have predicted. It seems to have had a beneficial effect as well.
M: Really? But were crop losses great?
W: Yes. However, since the weather following the eruption was unexpectedly good, some crop yields remain steady or even increase beyond normal expectancy level.
M. I’m glad to hear that. But what was the beneficial effect you mentioned?
W: A mass destruction of various insect population.
M: How could the ash kill insects without effecting people too?
W: It’s highly abrasive and quickly wears away the outer wax layer protecting insect bodies. Removal of that layer causes the insects to lose body moisture by evaporation, the result is usually lethal.
选项
A、It served as a fertilizer for crops.
B、it formed a new mountain.
C、It stabilized air temperatures.
D、It destroyed various insect pests.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2869857.html
相关试题推荐
[originaltext]W:Dad!I’mwonderingifIshouldbuyapairoftennisshoes.I’m
[originaltext]TherearemanyreasonswhyfamilylifeinBritainhaschanged
[originaltext]TodayI’dliketocontinuetotalkaboutthereasonwhytheU
[originaltext]W:Mr.Green,youweren’tathomelastSunday,wereyou?Itried
[originaltext]W:Mr.Green,youweren’tathomelastSunday,wereyou?Itried
[originaltext]W:Mr.Green,youweren’tathomelastSunday,wereyou?Itried
[originaltext]Ifyouarelikemostpeople,yourintelligencevariesfromse
[originaltext]Ifyouarelikemostpeople,yourintelligencevariesfromse
[originaltext]M:Goodmorning,thisisAllenPiercebroadcastingfromuniversit
[originaltext]OnFeb15th,1989,aninstantsurveywascarriedoutamong18
随机试题
Youcanperformallthosefunctionsthatyouperformatpresentwithyourmo
[originaltext]W:Howdoyoulikeyournewtenantwhomovedtoyourapartmentla
Directions:Itisverycommonthatmanyyoungpeopleholdseveralcreditcar
[originaltext]W:Oh,Ijustgiveanotheronedollarinthisstupidmachine.It
[originaltext]Meetingpeoplefromanotherculturecanbedifficult.Fromth
TCP/IP参考模型将网络分为四层,分别是应用层、传输层、网际层和( )。A.
具有易袭阴位致病特点的邪气是A.风邪 B.寒邪 C.湿邪 D.燥邪
下列选项中,属于公共部门的有()。A.行政部门 B.事业单位 C
关于业主对其建筑物专有部分享有占有、使用、收益和处分的权利,下列表述不正确的是(
下列各项中,属于统计抽样特征的有()。A.随机选取样本项目 B.评价非抽样风险
最新回复
(
0
)