A. was lying, had laid, laid, lay B. had laid, lay, laid, was lying C. lay, was lying, lain, lay D. laid, lay, lam, lies
A. 起始地址 B. 有效地 C. 物理地址 D. 间接地址
A. 《城市化理论》一书 B. 《城市建设》一书 C. 《社会地区分析》一书 D. 《南部德国的中心地》一书