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
34
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".
【C10】
选项
A、business
B、commercial
C、trading
D、exchanging
答案
C
解析
该句中“贸易关系”直接用“trading relations”。
转载请注明原文地址:https://kaotiyun.com/show/JtKK777K
0
大学英语六级
相关试题推荐
Forwelloveracentury,onestreetinNewYorkCityhasbeenknownfortheheartoftheAmericantheater.The【S1】__
EversinceALGoreinventedit,theInternethasbeenaparadiseforthosewithacreativeattitudetofacts.Students,forexam
Whatproportionoftheworld’selectricitysupplyisprovidedbyhydroelectricpower?Whendohighheadpowerplantsusesurplu
Fromthepassage,whichisthemaininfluencefactorinthefuture?Whatdoestheword"upheaval"(Line1,Para.3)mostprobab
Fromthepassage,whichisthemaininfluencefactorinthefuture?Accordingtotheauthor,whichofthefollowingisTRUEabo
Fromthepassage,whichisthemaininfluencefactorinthefuture?Fromthepassage,welearnpeoplewillhavetokeepworking
A、Thedinosaurswentextinct.B、AnumberofmeteoritescrashedintoEarth.C、Someanimalspeciesevolved.D、Someplantswentext
Badeatinghabits,increasedfoodavailability,increasinglysedentarylifestyleandreducedphysicalactivityarethefirstfou
Theplaceofthechildinsocietyhasvariedforthousandsofyearsandhasbeeneffectedbydifferentculturesandreligions,
A、PresidentWashington.B、PresidentAdams.C、PresidentHamilton.D、PresidentMonroe.B
随机试题
商品价格形成的二重性是由()
脉沉细而软,应指无力,属于
成人门静脉高压症继发食管胃底曲张静脉破裂大出血,最常见的并发症是
恶性肿瘤通过血道转移最常受累的脏器是
久泻不止,五更泄泻者,多见于久泻不止,脱肛,气短不续者,多见于
A.牵牛子B.郁金C.三棱D.五灵脂E.海藻芒硝畏()。
下列关于变更费用的表述正确的是()。
实行会计电算化的单位发生收款和付款业务的,在输入收款凭证和付款凭证的当天必须打印出现金总账和银行存款总账的账页,并与库存现金核对无误。()
结合材料回答问题:加强和创新社会治理,非常重要的一点就是推动社会治理重心下移。打赢疫情防控阻击战,更需要将防控工作落实到单位社区、居住社区、小区、院落、居民楼、每一个有人群的空间,直到每一户、每个人。在这次疫情防控中,很多地方都把干部派到社区、小
【S1】【S4】
最新回复
(
0
)