What would be the best title for this passage? Why are "blue polyethylene bags" mentioned in paragraph 2?

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问题 What would be the best title for this passage?
Why are "blue polyethylene bags" mentioned in paragraph 2?

选项 A、They are used to prop up bananas.
B、They protect growing bananas and speed ripening.
C、They help increase heat and humidity and so prevent injury.
D、Bunches of bananas are always covered with them.

答案B

解析第二段主要讲述用蓝色聚乙烯袋来保护生长的香蕉，使其加速成熟，故选B。

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本试题收录于：公共英语二级笔试题库公共英语（PETS）分类

公共英语二级笔试

公共英语（PETS）

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What would be the best title for this passage? Why are "blue polyethylene bags" mentioned in paragraph 2?

公共英语二级笔试

公共英语（PETS）

Whydoesn’tthewomanbuythebook?

Wheredoestheconversationmostprobablytakeplace?

Whydidthespeakermovetothecountry?

Forgiveandforget.Mostofusfindtheforgettingeasier,butmaybeweshouldworkontheforgivingpart."Holdingontohurts

Western-styleconversationsoftendevelopquitedifferentlyfromJapanese-styleconversations.AWestern-styleconversationbetw

Theostrich,thelargestbirdintheworldatpresent,livesinthedrierregionsofAfricaoutsidetheactualdeserts．Becauseo

Thebiographerhastodancebetweentwoshakypositionswithrespecttothesubject(研究对象).Toclosearelation,andthewriter

Mr.MikeSmith:Itwasn’taneasydecision,butwe’vebeenaskingforadecentwageforyears.Nowatlastpeoplearebegin

Meetingmyuncleafteralltheseyearswasanunforgettablemoment,______Iwillalwaystreasure.

Whatcanwelearnaboutthegrowthrateofpopulation?Thelastsentence"Lookafterthepeopleandthepopulationwilllookaf

注意看食品包装标识是否齐全，注意食品外包装是否表明()

(2002年第80题)下列预防和治疗术后肺不张的措施中，哪项是不恰当的

A/半合成镇痛药B/合成镇痛药C/具黄嘌呤母核的中枢兴奋药D/兴奋延髓的中枢兴奋药E/苯乙胺类的拟肾上腺素药咖啡因为

风湿性心脏炎激素治疗的总疗程是

冲洗智齿冠周炎的过氧化氢溶液的浓度是

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Withfewexceptions,evidenceindicatedthatthequalityoftheair,water,land,andlivingresourcescontinuedto_______.

A、TherootofJim’shealthproblems.B、Thewoman’sproblemswithherworkaholicprofessor.C、Jim’srelationshipwithhisprofess

Weareallconditionedbythewaywearebroughtup.Ourvaluesaredeterminedbyourparents,andinalargersense,bythecul