矿用电源应具有适应电网电压波动范围大的能力，在( )的输人交流电变化范围内能正常工作
A、75％～llO％A
暂无解析
Ifanearthquakeoccurred，someoftheone-storeyhouses________.
DuringtheSecondWorldWar,Roosevelt,StalinandChurchillmetat________.
英语翻译：Vatican
翻译：ChinamaywellbethefavoritewhippingboyofmanufacturersintheUnitedStatesthesedays.Butinthedevelopingworld,thecountryisbecomingthetradingpartnerofchoice,drawinginairplanesfromBrazil,soybeansfromArgentinaandseafoodfromMalaysia,boostingeconomiesandleadingtonewpoliticalalliances.Thegrowingappetiteoftheworld’mostspopulousnationhasmadeChinaanewsourceofincomeforthedevelopingeconomiesofSouthAmericaandAsia.“China’sboomingimportsfromdevelopingcountriesespeciallyofcommodities——arenotonlyhelpinggrowthincountriesfromBraziltoAfrica,butarealreadyreshapinginternationaltraderelations,”saidKennethRogoff,aneconomicsprofessoratHarvardUniversity.DevelopedcountriesalsoaresendingmoregoodstoChins,theworld-largesteconomy,withanestimated’ssixth$1.334trilliongrossdomesticproductin2003,accordingtotheIMF.
When_______,waterwillbeturnedintosteam.
