1mol 理想气体从平衡态A(2P1，V1) 沿直线变化到另一平衡态B(P1，2V2) ，则此过程中系统的功和内能的变化是 ( ) 。
C
画P-V图，注意到平衡态A(2P1，V1)和平衡态B(P1，2V2)都在同一等温线上。
复苏小组确定一个羊水胎粪污染的新生儿是“有活力的”。“有活力的”定义有哪3个特点?
翻译：
中华民族的传统文化博大精深、源远流长。早在2000多年前，就产生了儒家学说和道家学说，以及其他很多在中国思想史上有地位的学说流派，这就是有名的“诸子百家”。从孔夫子到孙中山，中华民族传统文化有它的很多珍贵品质。比如“天下兴亡，匹夫有责”的爱国情操，“民为邦本”、“民贵君轻”的民本思想和“己所不欲，勿施于人”的行为准则。
InwhatwaydoesLauraLenox-Conynghammakeherliving?
Passage2
Questions6to10arebasedonthefollowingpassage:
Inordertolearntobeone’strueself,itisnecessarytoobtainawideandextensiveknowledgeofwhathasbeensaidanddoneintheworld;criticallytoinquireintoit;carefullytoconsiderit;clearlytoanalyzeit;andearnestlytocarryitout.
Itmattersnotwhatyoulearn,butwhenyouoncelearnathing,youmustnevergiveitupuntilyouhavemasteredit.Itmattersnotwhatyouinquireinto,butwhenyouonceinquireintoathing,youmustnevergiveitupuntilyouhavethoroughlyunderstoodit.Itmattersnotwhatyoutrytothinkout,butwhenyouoncetrytothinkoutathing,youmustnevergiveitupuntilyouhavegotwhatyouwant.Itmattersnotwhatyoutrytocarryout,butwhenyouoncecarryoutathing,youmustnevergiveitupuntilyouhavedon’titthoroughlyandwell.
Ifanothermansucceedsbyoneeffort,youwilluseahundredefforts.Ifanothermansucceedsbytenefforts,youwilluseathousand.
6.Accordingtotheauthor,firstofallonemust.
A.analyzeB.inquireC.obtainknowledgeD.act
7.Accordingtotheauthor,.
A.learningisnotimportantB.thinkingisnotnecessary
C.knowledgemeanslittleD.itisnotimportantwhatwelearn
8.Theendoflearningshouldbe.
A.thoughtB.masteryC.inquiryD.analysis
9.Accordingtotheauthor,anotherman’ssuccessshould.
A.makegreatereffortsB.makeusnervous
C.notbetakenintoconsiderationD.causeonetostoptrying
10.Theauthorimpliesbutdoesnotsaywhat.
A.thewaytoknowledgeisthroughspecialization
B.onehastoknoweverythingtobesuccessful
C.successdependsnotsomuchonnaturalabilityasitdoesoneffort
D.successinone’sprofessionislatestimportantinone’slife