女，25岁。6月下旬来诊，腹泻、呕吐伴轻度腹痛1天。共腹泻6次，开始为黄稀便，继之水样便。呕吐1次，为胃内容物。无发热。粪便检查动力试验(+)，碱性蛋白胨培养有细菌生长。最有可能的诊断是
B
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ReadingComprehension
SectionA
Directions:Therearetenincompletesentencesinthissection.ForeachsentencetherearefourchoicesmarkedA,B,CandD.ChoosetheONEthatbestcompletesthesentence.Thenwritedowntherightanswerinthebracketsforeachsentence.Thissectiontotals10points,onepointforeachsentence.
()1.Wecansupplyallthebicyclesyourequired____________stockandarearrangingshipmentbyM.V.Mermaid.
A.forB.from C.to D.against
()2.Wewouldliketoremindyouthatthe__________L/CmustreachusbeforeMarch10
sothatwecanmakeshipmentingoodtime.
A.coveringB.cover C.coveredD.beingcovered
()3.Wehavereceivedyourletterof28March,___________ustomodifythepreviousarrangementsfortheshipmentofthecaptionedorder.
A.askedB.toask C.beingaskedD.asking
()4.InourletterofMay5,wemade__________clearthatshipmentistobeeffectedinJune.
A.youB.them C.thatD.it
()5.Wealwaysdeal_______________paymentbysightL/C.
A.with B.in C.at D.on
()6.Thisofferis_____________toyourreplyreachingusbeforethe20thofFebruary.
A.subjectingB.subject C.subjectedDtosubject
()7.____________weareappreciatingthegoodqualityofyourblacktea,weregretthatyourpriceappearstobeonthehighside.
A.WhileB.When C.HoweverD.Therefore
()8.Weherebyauthorizeyouto___________onusat60daysaftersighttotheextentofUSD20,000.00.
A.open B.establish C.draw D.build
()9.Ifpartiestoacontractdesiretosettledisputes,anarbitrationclauseisusuallymadeinthecontractwellbeforeadispute_____________.
A.risesB.arisesC.lookD.appear
()10.Somecustomersrequestedusto_____________ourpricebecausetheyconsideredit
toohigh.
A.putdownB.getdownC.takedown D.bringdown
-----Whataboutthepenyouboughtyesterday?
-----It____________well.Ilikeitverymuch.
We thank you for your letter of May 27 and the _____ illustrated catalogue.