到公元前7世纪后期，亚述成为地跨西亚北非的什么时代的区域性帝国( )
A．新石器
B．金石并用
C．青铜器
D．铁器
参考答案：D
玉米杂交种原种纯度要求不小于（）
A、99.8%
B、98.8%
C、97.8%
D、96.8%
After the earthquake, the first thing the local government did was to provide _____ for the homeless families. [ ]
A. accommodation
B. occupation
C. equipment
D. furniture
