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
专升本
What’s the best way to protect a tender, green seedling from the hungry stomach of deer? Give the seedling bad breath! The s
What’s the best way to protect a tender, green seedling from the hungry stomach of deer? Give the seedling bad breath! The s
admin
2016-08-13
23
问题
What’s the best way to protect a tender, green seedling from the hungry stomach of deer? Give the seedling bad breath!
The same chemical that gives people bad breath after they have eaten garlic can save small trees from being eaten by animals.
A kind of chemical selenium(硒), which is also found in garlic, is planted in the soil near a young tree. The tree’s roots absorb the selenium which is then carried to the leaves.
From there the selenium is used to form a chemical called dimethyl selenide(乙烷硒化物)—the same chemical made in the human mouth after eating garlic. As deer wander around looking for food, they smell the seedlings’ leaves and leave the plants alone.
The selenium is important. Why? Because each year deer eat millions of dollars* worth of trees farm seedlings.
So far, selenium has been tested only on Douglas fir(枞树)seedlings, but researchers think they could protect fruit trees and garden plants, too.
The best title of this passage is______.
选项
A、Hungry Deer and Young Trees
B、Why Don’t Deer Eat Young Fruit Trees
C、Plants Saved by "Bad Breath"
D、How to Protect Young Trees
答案
C
解析
文章主要介绍引起bad breath的气体及其在保护树木不被deer吃掉方面的作用。
转载请注明原文地址:https://kaotiyun.com/show/pBiC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
WhatdowemeanbyaperfectEnglishpronunciation?InonesensethereareasmanydifferentkindsofEnglishastherearespeak
FireandWaterShundagarhisavillageonIndia’seast-facingcoast.Itisavillageofsimplemudandgrasshousesbuilton
—Wastheclasslongenough?—No,itwash’t______enough.
A.Whatkindofmusicdoyoulike?B.Shallwehavesomethingtoeat?C.Seeyoulater.D.if/whetherthereisarestaurantnear
Thesmallnumberofnewbornbabies,whichhasbeencausedbyhighpricesandthechangingsocialsituationofwomen,isoneoft
Theroomhasbeendecorated______modemfurniture,butthecolorofthecurtainsdoesn’tit.
Naturehasdevisedmanywaystoprotectcreatures’eyes.Themostcommonprotectionistheeyelid—afoldofskinthatclosesove
ThenorthernpartsoftheUnitedStatesgetverycoldinthewinter.Itsnowsagreatdealandthetemperatureoftengoes【C1】___
UncleSamisatall,thinman.He’saneldermanwithwhitehairandawhitebeard.Heoftenwearsatallhat,abowtie,andth
Wateris______hydrogenandoxygen.
随机试题
患儿男,注射青霉素后10分钟出现呼吸困难、发绀、四肢凉,花纹,意识不清,继之出现惊厥。考虑为青霉素过敏反应。该型变态反应是
简述消费者权益损害的赔偿责任主体。
法定休假日安排劳动者工作的,支付不低于工资的()的报酬。
该承诺自( )起生效,下列关于承诺的表示中,错误的是( )。
下列( )的保险条款和保险费率,应当报保险监督管理机构备案。
我国目前已形成了()的金融体制。
中国特色社会主义事业的总体布局由经济建设、政治建设、文化建设三位一体发展为经济建设、政治建设、文化建设、社会建设四位一体体现了
WheredidJenkinsspendmostofhismarriagelife?
Wewon’tbeabletocometoyourdinnerpartyonSaturdaybecausethathappenstobethedayweareexpectingguestsourselves.
Walking,ifyoudoitvigorouslyenough,istheoverallbestexerciseforregularphysicalactivity.Itrequiresnoequipment,e
最新回复
(
0
)