美国开始胚胎干细胞临床试验

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1、美国开始胚胎干细胞临床试验听力课堂，开放式外语学习平台！TingClass.comBBCNewswithDavidLeggeThecommanderofUnitedStatesandNatoforcesinAfghanistan,GeneralDavidPetraeus,hasorderedaninvestigationintothedeathofakidnappedBritishaidworkerkilledduringarescueattemptonFriday.Hisarrnouncementc

2、omesaftertheUSmilitaryrevealedthattheaidworkerLindaNorgrovemayhavebeenkilledbyagrenadethrownbyAmericantroopstryingtorescueher.FromKabul,NicholasWitchellhasthisreport.For48hoursovertheweekend,officialsherehadspokenaboutanexplosioninitiatedbyoneoftheextre

3、mists,possiblyfromasuicidebombvest.QuitewhyittooktheAmericanssolongtoverifytheaccuracyofthepicturetheyweregivingisn'tclear,butthismorningtheysuddenlydisclosedthatsurveillaneefootagetogetherwithdiscussionswithmembersoftheteammeantthattheycouldnotnowc

4、onclusivelydeterminethecauseofMsNorgrove'sdeath・TherewillnowbeajointinvestigationbytheAmericanandBritishmilitary,whichislikelytotakeseveraldays・InChile,thefirsttesthasbeencarriedoutofthenarrowsteelcapsulethatwillbeusedtotrytorescue33minerswhohavebee

5、ntrappedundergroundforthepasttwomonths・CarolineHawleyisatthemineinSanJose.Preparationsarenowmovingaheadswiftlyfortheoperationtowinchtheminersoutofwhattheydescribedastheirundergroundhell・Notonlyistheescapeshaftready,butthespecialcapsulethatwassentdowntor

6、escuethemenhasbeentestedtoadepthof610metres,andtheMiningMinisterLaureneeGolbornesaysallwentwell.Theminerswillbetakenoffsolidfoodreadyfortheirascentandgivenonlyspecially-enricheddrinks.ThisextraordinaryrescuemissionisnowduetobeginbyearlyWednesdaymorning.

7、PalestinianofficialshaverejectedanofferbytheIsraeliPrimeMinisterBenjaminNetanyahutohaltJewishsettlementactivityifthePalestiniansweretorecogniseIsraelasaJewishstate.APalestinianofficialsaidtheofferwasbesidethepoint.WyreDaviesreportsfromJerusalem.ThePales

8、tinianresponsewasswiftandunequivocal,dismissingMrNetanyahu'ssuggestionoutofhand.AseniornegotiatorsaidthePalestinianshadlongagorecognisedthestateofIsrael,andtherealissuethreateningthetalkswasillegalJewishsettlementsonPalestini