碎石、砾石的数量验收，应选择平坦的场地，将碎石、砾石堆成整齐的（），表面取平、丈量后求其体积。 ["正方形","长方形","梯形","圆锥形"]
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 installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command： java -classpath /test：/home/bob/downloads/* .jar games.Chess Bob‟s CLASSPATH is set （at login time） 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 （with a correct manifest）"," inside jarfile \/home\/bob\/downloads\/Games.jar （with a correct manifest）"]
热电探测器主要包括（）。 ["热敏电阻探测器","热释电探测器","热电堆探测器","热偶探测器"]
你是怎样理解德育概念的？
高层建筑筏形基础和箱形基础长度超过（）m时，宜设置贯通的后浇施工缝（后浇带），后浇带宽不宜小于80cm，在后浇施工缝处，钢筋必须贯通。 ["10","20","30","40"]
德国，有一种用以帮助家庭，使其在遇到困难时能自助和自组织的家庭教育项目：（）
