屋顶花园的植物配置形式常见的有：（）、群落式。
What are two ways to minimize the delay of VoIP packets that are traversing a network？（） ["Use WFQ， CBWFO， and LLO to prioritize delay-sensitive packets","Use WFO， CBWFO， and LLO to compress the payload.","Give TCP packets priority over UDP packets.","Use control plane policing for cRTP queuing.","Use stacker and predictor to compress the payload."]
在芝加哥学派的（）于1899年设计的芝加哥施莱辛格-马耶百货大厦达到了19世纪高层建筑设计的高峰。 ["沙利文","赖特","戈地","卢斯"]
正交偏光镜下（）有四次明暗变化。 ["欧珀","尖晶石","金绿宝石","玻璃"]
在了解正常菌群概念及其生理意义之后，你怎样看待微生态制剂？
土壤侵蚀模数
