A UNIX user named Bob wants to replace his chess program with a new one，but he is hot sure where the old one is in stalled.Bob is currently able to run a Java chess program starting from his home directory/home/bobusingthecommand： java-classpath/test：/home/bob/downloads/*.jargames.ChessBob’sCLASSPATHisset（atlogintime）to： /usr/lib：/home/bob/classes：/opt/java/lib：/opt/java/lib/*.jar What is a possible location for the Chess.class file？（） ["\/test\/Chess.class","\/home\/bob\/Chess.class","\/test\/games\/Chess.class","\/usr\/lib\/games\/Chess.class","\/home\/bob\/games\/Chess.class","inside jarfile\/opt\/java\/lib\/Games.jar（withacorrectmanifest）","inside jarfile\/home\/bob\/downloads\/Games.jar（withacorrectmanifest）"]
影响渗透液动态参量的因素是（）。 ["粘度","表面张力","接触时间","缺陷性质"]
对于浅气层钻井，要根据地质提供的浅气层的位置、压力和范围，着重做好（）设计，杜绝浅气层井喷失控事故的发生。 ["A.井控设备的配套； ","B.井身结构； ","C.钻井液设； ","D.溢流监测； ","E：浅气层的分流控制程序。"]
社会形态是（） ["经济基础和上层建筑的统一","社会物质关系和社会思想关系的统一","社会经济结构和社会政治结构的统一","社会存在和社会意识的统一"]
什么叫牵伸？为什么要进行牵伸？牵伸的实质是什么？
公共产品的两个基本特征使其自身很难排除他人染指其产生的不可分割的效益，这就使得公共产品使用过程中容易产生两个问题：（）和（）。
