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
Most plants can make their own food from sunlight,【C1】______ some have discovered that stealing is an easier way to live. Thousa
Most plants can make their own food from sunlight,【C1】______ some have discovered that stealing is an easier way to live. Thousa
admin
2010-06-11
38
问题
Most plants can make their own food from sunlight,【C1】______ some have discovered that stealing is an easier way to live. Thousands of plant species get by【C2】______ photosynthesizing (光合作用), and over 4:00 of these species seem to live by pilfering sugars from an underground【C3】______ of fungi(真菌). But【C4】______ in a handful of these plants has this modus operandi been traced to a relatively obscure fungus. To find out how【C5】______ are【C6】 ______ , mycologist Martin Bidartondo of the University of California at Berkeley and his team looked in their roots. What they found were【C7】______ of a common fungus, so【C8】______ that it is found in nearly 70 percent of all plants. The presence of ’this common fungus in these plants not only【C9】______ at how they survive, says Bidartondo, but also suggests that many ordinary plants might prosper from a little looting, too.
Plants have【C10】______ relations to get what they need to survive. Normal【C11】______ plants can make their own carbohydrates through photosynthesis, but they still need minerals. Most plants have【C12】______ a symbiotic relationship with a【C13】______ network of what are called mycorrhizal fungi, which lies beneath the forest【C14】______ . The fungi help green plants absorb minerals through their roots, and【C15】______ , the plants normally【C16】______ the fungi with sugars, or carbon. With a number of plants sharing the same fungal web, it was perhaps【C17】______ that a few cheaters —dubbed epiparasites-- would evolve to beat the system.【C18】______ , these plants reversed the flow of carbons【C19】______ it into their roots from the fungi【C20】______ releasing it as "payment".
【C2】
选项
A、for
B、with
C、to
D、without
答案
D
解析
承接上文,“几千种植物无需光合作用就能生存”,因此D符合这一逻辑关系。
转载请注明原文地址:https://jikaoti.com/ti/WzMMFFFM
0
大学英语六级
相关试题推荐
Peoplebornintheautumnlivelongerthanthoseborninthespring.Andtheyarelesslikelytofall【B1】illwhentheyareolde
EversinceALGoreinventedit,theInternethasbeenaparadiseforthosewithacreativeattitudetofacts.Students,forexam
Whatproportionoftheworld’selectricitysupplyisprovidedbyhydroelectricpower?Whendohighheadpowerplantsusesurplu
Onthewhole,ambitiousstudentsaremorelikelyto______(在学业上比没有抱负的学生更成功).
Badeatinghabits,increasedfoodavailability,increasinglysedentarylifestyleandreducedphysicalactivityarethefirstfou
A、Computersalesnegotiations.B、Apreliminaryinterview.C、AnInternetseminarmeeting.D、Anoraltestforcomputerscience.BW
TheWonderfulWorldofSmallThere’saquietrevolutiongoingon,anditsnameisnanotechnology.Ahostofinnovationsarec
Theplaceofthechildinsocietyhasvariedforthousandsofyearsandhasbeeneffectedbydifferentculturesandreligions,
A、HowJohnMiltonWroteParadiseLost.B、HowJohnMiltonBecameaPoet.C、HowJohnMiltonStudiedLatin.D、HowJohnMiltonBecam
ParadiseLostisMilton’smasterpiece.ItsstoryistakenfromtheBible,about"thefallofman",thatis,howAdamandEveare
随机试题
通过细胞核内受体发挥作用的激素是
精子细胞核位于精子的
关于手正位片,拇指显示为
我国建设工程项目建议书阶段投资估算的误差率应控制在()范围以内。
决定利息率的基本因素是()。
谌大力最近到一家网络游戏公司担任总经理。公司2013年销售额1400万元,2014年2400万元,2015年2880万元,2016年预计3000万元。当谌大力看到这些数字时,顿时感到“压力山大”。谌大力遂召集各地经销负责人分析销售形势,会上有些项
畲族最重要的节日是()。
公司小张、小工、小李、小陈4人在作日轮流值班,每周五值班员要撰写一周小结。3月5日周五小李值班撰写了小结,下一次小李撰写一周小结的日期是()。
VisualFoxPro是指一种关系型数据库管理系统,所谓关系是指
Whatisthesmallestpossiblecommonmultipleoftwointegerswhicharebothgreaterthan50?
最新回复
(
0
)