滑参数启动有何特点？
下列哪些是组织环境要素（） ["人力资源供给","原材料","气候","法律","技术"]
The general election in America is held every （）years. ["5","4","6","3"]
干花花材如果放在（）的环境花材就会变软、变形和发霉。 ["空气潮湿","空气干燥","空气流通","空气污染"]
The colonial life can be described as the following except （） ["simple","easy","rough","hard"]
社区物业管理
