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
Humans aren’t the only ones to take a summer holiday, a new study has revealed. Creepy-crawlies, flies, and plants also join the
Humans aren’t the only ones to take a summer holiday, a new study has revealed. Creepy-crawlies, flies, and plants also join the
admin
2011-04-03
71
问题
Humans aren’t the only ones to take a summer holiday, a new study has revealed.
Creepy-crawlies, flies, and plants also join the vacation rush by hitching long-haul rides inside airline baggage.
The research reveals that—like people in many countries—June, July, and August are the peak months for long-distance travel.
Jet-Setting Beetles
Previous studies have shown that international flights are a significant factor in unwelcome insect invasion. Some 73 percent of recorded pest interceptions in the U.S., in fact, occur at airports.
Curious to determine when insects pack their bags and where the bugs are most likely to go, Andrew Tatem and Simon Hay of the University of Oxford in England studied global flight patterns for the 12-month period from May 1,2005 to April 30,2006.
Pest travel between far-flung locations is more likely when the weather is similar in both regions, making it easy for the pests to settle into their new home.
The researchers used rainfall, temperature, and humidity data from each region to work out which places linked by the global flight network had the most similar climates at various times of the year.
"Hawaii, with its moderate year-round climate, is a hot spot for pest invasions," Tatem said. "It is linked to a similar climate in Central America in April, Asia in July, and the Caribbean in October."
In general, though, June, July, and August are the peak months for insect travel.
"There are more airports in the Northern Hemisphere, and the major Southern Hemisphere airports tend to be closer to the Equator," Tatem said. "The June-to- August period stood out as the time when, overall, the busiest flight routes connect geographically distant but climatically similar locations."
Which period stood out as the time when most flights connect places with similar environments?
选项
A、From March to May.
B、From June to August.
C、From September to November.
D、From December to February.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/50id777K
本试题收录于:
托业阅读题库托业(TOEIC)分类
0
托业阅读
托业(TOEIC)
相关试题推荐
EveryTuesday,Carinagoestoworkinabank.Sheknowsallhercustomers(顾客)verywell,becausetheyareherclassmates.Infa
OneSaturday,MarkandJanedecidedtogotoahillneartheirvillage.Theymadesomefoodtotakealong【C1】______lunch.Thetw
Ifyouhaveagreedtogoouttoeatwithsomeone,youshouldbeclearwhoispaying.Iftheotherpersonsuggeststhatyoushoul
[A]year[B]winter[C]summer[D]passport[E]umbrella[F]medicine[G]newspaperPeoplereaditforinformation.
Alotofpeopledon’twanttotalkabouttheirage,especially(尤其是)womenover30.Thethoughtofgrowingolderisapainful(
Mr.andMrs.RajahHassimweregoingtoeatout.Mr.Hassimtelephonedinthemorningandreserved(预定)atableinSpringRestau
Manyyearsago,KarlBenzdevelopedacar,butbeforehecouldshowittothepublic,someonehadtodriveit.BertaBenzbeliev
FEIFEIELEVATORSisoneoftheleadingelevatorcompaniesintheworldwithmorethan120branchcompanies(分公司)aroundtheglobe
Howmanyyearsrepaymentscheduledotheyworkon?
accept,discount,against,dishonoured,attached,hypothecation,credit,draw,ownership,amountWhenaLetterofCredith
随机试题
在当今世界许多地区民族冲突迭起的情况下,我国各族人民和睦相处,共同建设中国特色社会主义,这是因为我国()。
CT扫描检查前,去除被检部位金属物品的目的是
预防心脑血管疾病的二级预防是指
3月20日,上海的甲公司与北京的乙公司签订了一份买卖合同,约定:甲公司向乙公司购买1000吨化工原料,总价款为200万元;乙公司在合同签订后1个月内交货,甲公司在验货后7日内付款。双方没有明确约定履行地点。合同签订后,甲公司以其办公用房作抵押向丙银行借款2
下列有关审计报告的日期的说法中,不正确的是()。
下列情形,不在人民法院受理的行政诉讼案件的范围内的是()。
写字楼物业管理的常规目标主要有()目标。
良好的人际关系是教师完善人格的一个重要标志,也是教师心理健康的重要内容。()
在人工概念形成的过程中,记忆负担最重的策略是
Pollutionisa"dirty"word.Topollutemeanstocontaminate--topsoilorsomethingbyintroducingimpuritieswhichmake【C1】_____
最新回复
(
0
)