This restaurant wasn't        that other restaurant we went to.

A．half as good as

B．as half good as

C．as good as half

D．good as half as

城市生态系统的高层次性体现在______。

A．城市生态系统是人类最完善的生态系统

B．城市生态系统是人们具有巨大的创造、安排城市生态系统的能力

C．城市生态系统的构成物质及其运作都体现着当代科学技术的最高水平

D．城市生态系统是人类社会选择的最优化的生存环境

E．城市生态系统具有自我修复的能力