下面哪些特性是调节层所具有的（）

在切片面板中将割图设定为无图象后：

在应急管理中，预防有两层含义:一是事故的预防工作;二是在假定事故必然发生的前提下，通过预先采取的预防措施，达到降低或减缓事故的影响或后果严重程度。

Withtherapiddevelopmentofpetroleumindustry,moreandmoreoilproductsofhighqualityarebeingturnedout.

Directions:Inthispart,therearefouritemswhichyoushouldtranslateintoChinese,eachitemconsistingofonesentence.ThesesentencesarealltakenfromthereadingpassagesyouhavejustreadinPartIIIoftheTestPaper.Youareallowedminutestodothetranslation.Youcanreferbacktothepassagessoastoidentifytheirmeaninginthecontext.WriteyourtranslationontheTranslationSheetinTestPaperTwo.

T1.(Line2-3,Paragraph1,Passage1)

Thiswasbecausebacteriaenteredthecutsinthepatientsbodied’andstartedinfection.

T2.(Line2,Paragraph2,Passage2)

ManywererejectedbyU.S.medicalschoolssimplybecausetherewasnoroom.

T3:.(Line3-4,Paragraph1,Passage3):

Accusedofneglectingthispartofoureducation,myfatherinstitutedasummerschoolformybrotherandme.

T4:.(Line4-5,Paragraph1,Passage4)

Differentculturesaremorepronetocontractcertainillnessesbecauseofthefoodthatischaracteristicinthesecultures.