1.“开学了”可以翻译成“openschool”.

12.Thislittlebookrepresentedthe()of15years'work.

1.WhichofthefollowingareAfrican-Americanauthors?

12.MarkTwain’sworksarecharacterizedbythefollowingexcept().

PartI.Choosethecorrectmeaningofthehighlightedwords.(40points,4pointsforeach.)1.Theingeniouspointaboutthenew-modelzooisthatitdeceivesbothsidesoftheinvisiblebarrier.A.somethingsuchasarule,law,orpolicythatmakesitdifficultB.verycleverandinvolvesnewideas,methods,orequipment.C.theysayordosomethingthatisrudeoroffensiveD.succeedinmakingithappen,oftenbytrickingsomeone.

A.BritishB.RussianC.AmericanD.Italian

Part4ReadingComprehensionTEXTA-22.Whatcanbeinferredaboutextractingwaterfromdeepaquifers?

Part4ReadingComprehensionTEXTA-33.Whatismentionedasaconsequenceofextractingwaterfromdeepunderground?

Part4ReadingComprehensionTEXTA-44.Whatdoestheauthorsayaboutdeepwells?

Part4ReadingComprehensionTEXTA-55.Whatmayhappenwhendeepaquifersareusedaswatersources?

已知H3PO4的pKa1=2.12,pKa2=7.20,pKa3=12.36。今有一磷酸盐溶液的pH=12.78,则其主要存在形式是()

用EDTA法测定石灰石中氧化钙的含量，经四次平行测定，得氧化钙平均含量为27.50%，若真实含量为27.30%，则27.50%—27.30%=0.20%为（）

下列滴定(浓度均为0.1 mol/L)中可行的是（）已知pKa(HA) = 4.85, pKa(HB) = 9.3, pKb(MOH) = 8.70, pKb(ROH) = 3.80 

量取溶液体积在1-10mL之间的分析方法称为（）

某酸碱指示剂的KHIn=1.0×10-5，则从理论上推算其变色范围是（）