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
考研
Most plants can make their own food from sunlight, (1)_____ some have discovered that stealing is an easier way to live, Thousan
Most plants can make their own food from sunlight, (1)_____ some have discovered that stealing is an easier way to live, Thousan
admin
2010-11-27
48
问题
Most plants can make their own food from sunlight, (1)_____ some have discovered that stealing is an easier way to live, Thousands of plant species get by (2)_____ photosynthesizing, and over 400 of these species seem to live by pilfering sugars from an underground (3)_____ of fungi(真菌). But in (4)_____ a handful of these plants has this modus operandi been traced to a relatively obscure fungus. To find out how (5)_____ are (6)_____, mycologist Martin Bidartondo of the University of California at Berkeley and his team looked in their roots. What they found were (7)_____ of a common type of fungus, so (8)_____ that it is found in nearly 70 percent of all plants. The presence of this common fungus in these plants not only (9)_____ at how they survive, says Bidartondo, but also suggests that many ordinary plants might prosper from a little looting, too.
Plants have (10)_____ relations to get what they need to survive. Normal, (11)_____ plants can make their own carbohydrates through photosynthesis, but they still need minerals. Most plants have (12)_____ a symbiotic relationship with a (13)_____ network of what are called mycorrhizal fungi, which lies beneath the forest (14)_____. The fungi help green plants absorb minerals through their roots, and (15)_____, the plants normally (16)_____ the fungi with sugars, or carbon. With a number of plants sharing the same fungal web, it was perhaps (17)_____ that a few cheaters—dubbed epiparasites—would evolve to beat the system. (18)_____, these plants reversed the flow of carbon, (19)_____ it into their roots from the fungi (20)_____ releasing it as "payment".
选项
A、business
B、commercial
C、trading
D、exchanging
答案
C
解析
形容词辨析。trading relation意为"贸易往来",它形象地描述了植物和真菌之间的互惠互利的关系。
转载请注明原文地址:https://kaotiyun.com/show/DHZ4777K
0
考研英语一
相关试题推荐
Itisgenerallybelievedthatambitionmaybewellregardedif______.Fromthelastparagraphtheconclusioncanbedrawnthat
CollegesportsintheUnitedStatesareahugedeal.AlmostallmajorAmericanuniversitieshavefootball,baseball,basketball
Theword"contained"(Line6,Paragraph1)mostprobablymeans______.Thebesttitleforthetextwouldbe______.
Inthefollowingarticle,somesentenceshavebeenremoved.ChoosethemostsuitableonethelistA—Gtofitintoeachofthenu
Theword"curious"(Line1,Paragraph1)mostprobablyimpliesthat______WhatisthebestdescriptionoftheschoolsinSt.L
Eventheirparentsstruggletodrawthetiniesthintofemotionorsocialconnectionfromautistic(患孤独症的)children,soimaginew
Rarelyhastherebeenasneatafitbetweenabook’ssubjectanditsauthor’sbiographyasin"BoundTogether:HowTraders,Prea
Youaregoingtoreadalistofheadingsandatextaboutwhatparentsaresupposedtodotoguidetheirchildrenintoadulthood
Portabledevicesarebecominglighterandmoreappealing.Booksarebeing(1)_____intodigitalformbythethousands.Themost
Portabledevicesarebecominglighterandmoreappealing.Booksarebeing(1)_____intodigitalformbythethousands.Themost
随机试题
患者男,43岁,以“无明显原因的突发左耳听力下降伴眩晕3天”收入院。患者的治疗方式有
为抑制其他菌生长,培养霍乱弧菌pH常为
批量运输爆破器材要使用专用运输工具,在(。)的押运下进行。
FIDIC合同条件下,工程量清单项目不包括()。[2008年真题]
以初中物理“噪声的危害与控制”为例,简述教学中如何开展讨论合作学习。
对于希望健身的人士来说,多种体育锻炼交替进行比单一项目的锻炼效果好。单一项目的锻炼使人的少数肌肉发达,而多种体育锻炼交替进行可以全面发展人体的肌肉群,后者比前者消耗更多的卡路里。如果以下哪项陈述为真,最有力地加强了上述论证?()
2010年1-6月我国电信业务收入总量比上年同期增长()。
某商店经销某种商品,每周进货数量X与顾客对该种商品的需求量Y之间是相互独立的,且都服从[10,20]上的均匀分布.商店每出售一单位商品可获利1000元;若需求量超过了进货量,商店可从其他商店调剂供应,这时每单位商品获利500元,计算此商店经销该种商品
对数据库的数据可以进行查询、插入、删除、修改(更新),这是因为数据库管理系统提供了
Thehumanbodyissuitablydescribedas"ahighlycomplexself-genera-tor"becauseifitisgiventherightfuel,itiscapabl
最新回复
(
0
)