ItispossiblethattherearemoremoonswithinSaturnsringsyettobediscovered.土卫十八是已知土星卫星中最里面的一颗:公转轨道:距土星133,583千米卫星直径:20千米Pan是树林、田野和畜群之神,他有一个人的躯干和头,有山羊的腿、犄角和耳朵。这颗卫星是在1990年由MarkR.Showalter从旅行者号传回的照片中发现的。土卫十八在土星A光环带的Encke沟中;...
TheAmericathatgreetedthefirstEuropeanswas,thus,farfromanemptywilderness.ItisnowthoughtthatasmanypeoplelivedintheWesternHemisphereasinWesternEuropeatth;...
InFrance,enthusiasmfortheAmericancausewashigh:theFrenchintellectualworldwasitselfinrevoltagainstfeudalismandprivilege.However,theCrownlentitssupportto;...
阅读下列短文,然后根据短文内容回答问题。ANearlyallAmericanstudentsincollegesanduniversitiespayfortheireducation.Therearemanyexpenses.Firstofall,thereistuition(学费)。Atsomes;...
第六篇NativeAmericanPotteryThereareseveralAmericanIndiangroupsintheSouthwestthatstillmakebeautifulpottery.Someofthispotterymaybesoldatfairlyhighprices.Bu;...
Inthe1950s,NativeAmericansstruggledwiththegovernmentspolicyofmovingthemoffreservationsandintocitieswheretheymightassimilateintomainstreamAmerica.Noton;...
概述结节性多动脉炎(polyarteritisnodosa,PAN)是一种以中、小动脉透壁性纤维蛋白样坏死伴有血管周围炎性浸润的自身免疫性系统性血管炎,可累及全身各组织器官,但以皮肤、关节、外周神经、胃肠道和肾受累最为常见。病因和发病机制本病的病因尚未阐明。认为可能与下列因素有关:1、病毒许多数据;...
americann.美国人,美洲人adj.美国的,美洲的常用短语americanaloe番麻americanfederationoflabor【经】劳联organizationofamericanstates【经】美洲国家组织americanenglishn.美式英语americanlegionn.;...
AmericanstodaythinkoftheWarforIndependenceasarevolution,butinimportantrespectsitwasalsoacivilwar.AmericanLoyalists,orToriesastheiropponentscalledthem,;...
1953-ThemoviePeterPanpremieresattheRoxyTheatreinNewYorkCity.1953年的今天,电影《彼特·潘》在纽约城的罗克西剧院首映。;...