【单选题】I did my homework ______________;
【单选题】. Not only the whole nation, but the whole Europe , indeed the whole human society ______ to alter its attitude to racial problems.
【单选题】平面汇交力系平衡的充分必要条件是 ( )
【单选题】It took him morning to check out information. [ ]
【单选题】平面汇交力系平衡的充分必要条件是 ( )
【单选题】进行购置设备与租赁的方案比选,需要分析设备技术风险、使用维修特点 , 其中对( )的设备,可以考虑租赁设备的方案。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
技术过时风险小 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
B.
保养维修简单 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
保养维修复杂 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
D.
使用时间长 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>