首页
登录
职称英语
[originaltext] Words come from California of a new weapon in the war on hous
[originaltext] Words come from California of a new weapon in the war on hous
游客
2023-09-13
32
管理
问题
Words come from California of a new weapon in the war on household pests. Two scientists working for a firm in Anaheim, California, have developed a method to eliminate insects without using dangerous chemicals. The new poison? Hot air.
The basic idea is that insects cannot adjust to temperatures much above normal. In laboratory experiments, cockroaches and termites can’t survive much more than a quarter of an hour at 125 degrees Fahrenheit, or about 50 degrees centigrade.
The new method involves covering a house with a huge tent and filling it with hot air heated to around 65 degrees centigrade. Hot air is forced in with fans and the tent keeps the heat inside the house. Since termites try to escape by hiding in wooden beams, the heat treatment must be continued for a full six hours. But when it’s all over, and the insects are dead, there are no toxic residues to endanger humans or pets, and no funny smells.
Scientist claim that there is no danger of fire, either, since very few household materials will burn at 65 degrees centigrade. In fact, wood is prepared for construction use by drying it in ovens at 80 degrees centigrade, which is substantially hotter than the air in this procedure.
选项
A、Because the hot air has to reach a certain temperature.
B、Because the house is very big.
C、Because termites try to escape by hiding in wooden beams.
D、Because termites may survive for a full six hours.
答案
C
解析
细节题。为什么要持续六个小时以上呢?原文中提及:“Since termites try to escape by hiding in wooden beams”,所以为了要彻底去除白蚁,就必须加热六个小时。
转载请注明原文地址:https://tihaiku.com/zcyy/3010812.html
相关试题推荐
[originaltext]AlbertSchweitzerwasbornin1875inAlsace.Atthattime,i
[originaltext]Undernormalconditionstheactofcommunicationrequiresthe
[originaltext]Undernormalconditionstheactofcommunicationrequiresthe
[originaltext]BillGates,theheadoftheworld’sbiggestcomputersoftware
[originaltext]M:Whydoyouthinkthatway?W:WhileIadmitthereisverylitt
[originaltext]M:Whydoyouthinkthatway?W:WhileIadmitthereisverylitt
[originaltext]GeneralizingabouteducationintheUnitedStatesinvolvesso
[originaltext]GeneralizingabouteducationintheUnitedStatesinvolvesso
[originaltext]Yourprofessorhasaskedmetotalktoyoutodayabouttheto
[originaltext]Yourprofessorhasaskedmetotalktoyoutodayabouttheto
随机试题
因此,当父母移居同外后,母语往往鲜少被提起,甚至慢慢被遗忘。(wither)Solanguagesoftenwitheranddiewhenpar
Whenapplyingforajob,youhaveto______aresume.A、getoffB、takeawayC、put
[originaltext]Mostantsarehardworkersandoftenworkfromsixo’clockin
[originaltext]WinningrecognitionintheannualMichelinGuideisoneofth
Sky-highgasolinepricesaren’tjustraisingthecostofEugeneMarino’s120
我国采取的不动产登记资料信息模式是( )。A.完全公开 B.有限公开 C.
(注:顺差是指在国际收支上,一定时期内收入大于支出的差额;逆差指的是在国
按规定,一般情况下各类债券的交易流通终止日为债券兑付日前的第()个工作日。
目前,国家收回建设用地使用权的原因可能是()。A.建设用地使用权期间届满而
当专项风险等级为()级且无法降低时,必须提高现场防护标准,并视情况开展第三方施
最新回复
(
0
)