栽植前场地清理符合下列规定：
Which of the following cannot be used as input to the SQL Tuning Advisor?（） (Choose all that apply.) [" A single SQL statement provided by a user"," An existing SQL Tuning Set (STS)"," A preprocessed Database Replay workload"," A schema name"," SQL statement identified in EM as using excessive resource"]
细胞中发生突变的原因是（） ["酶蛋白分解","改变遗传密码","没有提供葡萄糖分子","取消ATP供应"]
细菌菌落
合资企业是战略联盟最常见的一种类型，这种联盟的目的不仅仅为了高额的投资回报率，而且体现了联盟企业之间的战略意图。
帕克认为生物学规则同样适合于城市结构分析，理由是什么？
