国开在线答案
-
2022-09-12
[单选] — I'mleavingforShanghaitomorrow.—_________________________
-
2022-09-12
[单选] Tom can speak French. ______.
-
2022-09-12
[单选] This,theyargue,willbeessentialto theneedsofaboomingpopulationindecadestocomeandavoidingstarvation.
-
2022-09-12
[简答] 二、阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。（课外选材）Accordingtoexperts,theadvantageofmodifiedfoodisthatithelpsinpreventingtheoccurrenceofallergiesandalsohasalongshelflife.However,amajorportionofthepopulationisagainsttheconsumptionofgeneticallymodifiedfoodandisconcernedaboutitsdisadvantages.Ifyouarealsoconfusedabouttheconsumptionofgeneticallymodifiedfood,readthroughtheprosandconsgivenbelowanddecideforyourself.AdvantagesofGeneticallyModifiedFoods●Oneofthemostprominentadvantagesofgeneticallymodifiedfoodisthatithelpsincontrollingtheoccurrenceofcertaindiseases.Certainfoodscauseallergytopeople.TheirgeneticmodificationalterstheDNAsystemofthesefoods,therebymakingthemnon-allergic.●Anothermajoradvantageofsuchtypeoffoodsisthattheygrowfasterthantheirtraditionallygrowncounterparts.Asaresult,thereisgreaterproductivityandmorefood.●Apersonneednotbotheraboutanyadditionalcosts,suchasbuyingchemicalsandpesticides,whenitcomestogeneticallyengineeredfood.Thefoodisnaturallypest-resistant.●Farmingthesefoodscanbeagreatwaytofightworldhunger.Sincethesecropsgrowfasterormoreeffectively,increasedproductionwouldhelpcountrieswhereincropsmaynotnormallyprosperbecauseoflessthandesirableenvironmentalconditions.●Theincreasedshelflifeofthesefoodproductshelpsinreducingthequantityofrottenfood.DisadvantagesofGeneticallyModifiedFoods●Thebiggestdisadvantageofgeneticallymodifiedfoodisthattheyhaveharmfuleffectsonthehumanbody.Theconsumptionofthesegeneticallyengineeredfoodscanleadtodevelopmentofdiseasesthatareimmunetoantibiotics.●Chancesofdevelopingcancerarehighinpeoplewhoregularlyconsumeengineeredfood.●Sinceitisanunnaturalwayofproducingfoods,thereisanincreasedhealthhazardsuchasallergens,transferofantibioticresistancemarkersandunknowneffects.●Sincetheproductionofengineeredfoodinvolvesinfusinganimalgenesinthecropsandtamperingwithnature,itmightnotbegoodforconsumptioninthelongrun. 1.Howdoesgeneticallymodifiedfoodcontroltheoccurrenceofcertaindiseases?A.Bycross-pollinating.B.Byconventionalcrossbreeding.C.ByalteringtheDNAsystemofthesefoods.2.Dofarmersneedtobuyanychemicalsandpesticidesiftheyplantgeneticallymodifiedfood?A.Yes,theyneedto.Becausethefoodisnotresisttopests.B.No,theydon’tneedto.Becausethefoodisnaturallypest-resistant.C.No,theydon’tneedto.Becausethechemicalsandpesticidesareprovidedbythegovernment.3.Whichstatementisnottheadvantageofgeneticallymodifiedfood?A.Itmayhaveharmfuleffectsonhumanbody.B.Geneticallymodifiedfoodgrowsfasterthantheirtraditionallygrowncounterparts.C.Farminggeneticallymodifiedfoodcanhelpfightworldhunger.4.Whatwouldhappentoapersonifheregularlyconsumegeneticallymodifiedfood?A.Hewouldgetcold.B.Hewouldlosesomeweight.C.Hewouldhavecancer.5.Whichtitleisthebestforthispassage?A.Cangeneticallymodifiedfoodscombatworldhunger?B.Geneticallymodifiedmood:ouranswerisnoC.Geneticallymodifiedfoods:prosandcons
-
2022-09-12
[单选] Youcanhaveeggs orhard-boiled.
-
2022-09-12
[单选] Someillegaltraderscareaboutnothingbut .
-
2022-09-12
[单选] Theatlas isnormallykeptbythebigwindowbutnowitis tothewallrightnexttoBroccoli.
-
2022-09-12
[单选] TherewillbeaspacehotelinBarcelonaIsland, youcan“experience”spacetravelbyviewinglifelikegalaxiesthroughcabinwindows.
-
2022-09-12
[单选] 从社会主义的发展历史来看，具有典型意义的政体形式主要有（ ）。
-
2022-09-12
[单选] 以毛泽东为代表的中国共产党人，把马克思主义政治观运用于中国革命实践，他所撰写的（ ）等著作成为具有中国特色的马克思主义政治学说的主要代表作。
- 首页
- 上一页
-
3335
-
3336
-
3337
-
3338
-
3339
-
3340
-
3341
-
3342
- 下一页
- 尾页
