小平板配合经纬仪联合测图是按（）交会法测定碎部点的。 ["一个角度和一个高程","一个距离和一个方向","两个角度","两个距离"]
空间效应
一次认购开放型基金为1500万元人民币，认购费用应为（） ["1500000元","1800000元","2250000元","3000000元"]
某现浇楼板的跨度为6m，当设计无具体要求时，混凝土强度满足（）时方可拆除底模。 ["≥50％设计强度","≥75％设计强度","≥l00％设计强度","保证混凝土表面及棱角不因拆除而受损坏"]
When configuring a WLAN controller for a voice application using Cisco 7920 wireless IP phones，which two general control settings should you select？（） ["Multicast on","Aggressive Load Balancing off"," Multicast off","AP Fallback on","Aggressive Load Balancing on","AP Fallback off"]
“十二五”时期中国人口和计划生育工作的主要任务是什么？
