【单选题】本工程主体结构体系类型为( )结构、抗震等级为( )
【简答题】These pets _____ (require) a lot of care and attention.
【单选题】本工程结构类型为( ),抗震等级为( )。
【单选题】1 These pets ______ a lot of care and attention.
【单选题】本工程主体结构体系类型为( )结构、抗震等级( )。
【单选题】These pets ______ a lot of care and attention.